Finally know who’s coming
Everyone easily reports an absence or a late arrival, and you request attendance whenever you need it
The problem before: To know who would show up, you had to run a WhatsApp poll, cross-check replies, chase the silent ones… and count heads section by section. On the day, you discovered the gaps at the last minute.
The Sostenutoo solution: Day to day, each musician reports an absence or a late arrival in one tap. And when it matters, a concert, an important date, an admin can ask everyone to confirm their attendance for the event. You then see the real turnout, instrument by instrument, with no chasing.
Report an absence or late arrival
The basics: each musician reports in one click that they’ll be absent or late, with a reason if they wish. Everyone stays informed, with no private messages or polls.
Request attendance when it matters
For a concert or an important date, an admin can ask everyone to confirm their attendance for the event. It’s not automatic: you switch it on only when you need it.
Know who’ll be there
For each rehearsal or concert, the committee sees who’s coming, who’s missing and which instruments will be absent. Enough to plan the turnout and adapt the session.
Report on someone’s behalf
An admin can record musicians’ absences themselves (including unexcused ones). And an authorised relative, a parent for their child, a carer for a relative, can report on the musician’s behalf.
How does it work in practice?
A musician reports in one click that they’ll be absent or late for an event, with a reason if they wish.
For an important event, the admin switches on an attendance request: everyone replies from their phone.
The committee sees the real turnout and can, if needed, record an absence themselves (for example an unexcused one).
Secure sheet music storage
Secure sheet music, accessible by instrument
The problem before: Sheet music was sent by email, stored on unsecured cloud services, or worse, lost in incomprehensible shared folders. Musicians didn't always get the right sheet music.
The Sostenutoo solution: Upload your sheet music from the admin interface. The system stores them with ultra-secure TLS/SSL encryption. Each musician accesses only the sheet music for their instrument, without wasting time searching. No more confusion, no more lost sheet music.
Maximum security
Your sheet music is protected by TLS/SSL encryption. Only authorized members of your orchestra can access it. No public sharing, no possible leaks.
Automatic filtering
The clarinetist only sees clarinet sheet music. The trumpet player only sees theirs. Time saved for musicians.
Simple upload
Upload your sheet music in seconds. Easy deletion/replacement if needed.
Full recovery
Download all orchestra sheet music in one click, in a neatly organized ZIP archive (by program then by piece). Your data always belongs to you.
Controlled sheet music access
By default, each musician sets their instruments and accesses the matching parts. If you wish, an admin can define a member’s instruments to limit their access: not everyone necessarily sees every part. An option, never a requirement.
Automatic AI distribution
Drop multiple sheet music files at once. Our artificial intelligence examines the content of each score, recognises the part and instrument, even when the file name isn’t explicit, and files each one in the right place. No more sorting them one by one.
Select your files in bulk (drag and drop or click)
The AI reads the content of the scores and recognises the instrument and part number, without relying on the file name
Validate or correct the suggestions before the final upload. Considerable time savings for orchestras with lots of sheet music.
Real-time sheet music annotations
Bowings, fingerings, dynamics, the conductor’s reminders: annotate straight on the score, and everything syncs across devices. A shared layer for marks common to the whole section, a personal layer for your own.
The section leader annotates the score (bowings, dynamics, cuts): the whole section sees it, on every device.
Each musician adds personal marks on top, without disturbing the others or erasing the shared annotations.
Everything stays in sync: find your annotations on phone, tablet or computer, up to date everywhere.
Complete workflow: from upload to musician access
The conductor or administrator uploads sheet music from the admin interface (e.g.: "Symphony No. 5 - Clarinet.pdf")
You define the instrument associated with each sheet during upload (e.g.: this sheet is for clarinet)
The musician logs in and instantly sees ONLY the sheet music for their instrument (defined in their profile)
No more time wasted: the clarinetist doesn't have to search through 50 sheets to find theirs. It's already filtered and ready to download.
Technical specifications
- Accepted formats: PDF, as well as images (JPG, PNG, WEBP, HEIC…)
- Security: TLS/SSL encryption, access controlled by authentication, no public sharing
- Modification: Sheet music cannot be modified after upload (to guarantee integrity), but deletion/replacement is possible at any time
- Recovery: Download all your sheet music in one click (ZIP), organized by program and piece. Your data belongs to you.
Centralized communication
Orchestra chat + official announcements: in the right place, at the right time
The problem before: A message in a WhatsApp group, info by email, a reminder by SMS... Result: important information gets lost, and not everyone has the same level of information.
The Sostenutoo solution: communication integrated into the orchestra: a chat for daily exchanges and an Announcements space for official information. It's simple, clear, and accessible on web, iOS and Android.
Orchestra chat
A single space to ask a question, confirm info, share a logistics reminder. Messages remain accessible to all members, and everyone can react with an emoji.
Images in chat
Share a photo (poster, plan, stands, logistics) directly in chat. Images open full-size for readability on mobile.
Official announcements
Publish important announcements (venue change, instructions, reminders) and pin them to stay visible at the top. Reserved for authorized roles.
Conversations & sub-groups
Beyond the main chat, create conversations between members or by small group, a section, the committee, a project, for more focused exchanges.
In practice: chat vs announcements
A quick question? Use the chat (e.g.: "What time do we start?", "Who's bringing the music stands?").
Official information? Publish an announcement (e.g.: venue change, concert dress code, carpool organization).
Important? Pin the announcement to keep it at the top and immediately visible.
Communication best practices
- Use announcements for information that concerns the entire orchestra
- Keep chat for short exchanges and daily coordination
- React rather than reply "OK" to keep the thread readable
Shared event calendar
Rehearsals, concerts, master classes: everything in one place
The problem before: Events were announced by email, SMS, or WhatsApp groups. A concert here, a rehearsal there. Musicians had to manually note everything in their calendar. Result: forgetfulness, confusion, and "oh no, that was today?"
The Sostenutoo solution: Create your events (rehearsals, concerts, master classes) in a few clicks. All musicians see them instantly in the app. And most practical: each musician can add any event to their calendar in one click. No more entering dates manually. Bonus: they can also report an absence or delay directly on the event.
Clear overview
All upcoming events are visible at a glance. Musicians immediately see the next rehearsal, the next concert, and all important dates.
Synced with your personal calendar
Each musician adds events to their personal calendar, and can even sync the ensemble’s calendar with Google Calendar, Apple Calendar or Outlook. Dates land where they already look every day: nothing gets forgotten.
Custom program per event
For each rehearsal or concert, define the pieces being worked on and add detailed notes (conductor instructions, logistics info). You can also specify a location and, if needed, start/end times.
Automatic AI rehearsal creation
Manually creating all rehearsals for a season takes hours. With AI, simply indicate your rehearsal day, the period and your vacation preferences: all rehearsals are created automatically. Time saved: 2 minutes instead of 2 hours.
Enter basic info: rehearsal day, times, period (e.g.: September → June)
AI generates all dates automatically excluding school holidays and public holidays according to your preferences
Review and validate: all rehearsals are created in one click in your calendar
Event types you can create
Rehearsals: Create your weekly or one-time rehearsals with location, time and associated program
Concerts: Schedule your public concerts with all practical information for musicians
Meetings & general assemblies: Committee meetings, general assemblies, or any other event in the life of your ensemble
Holidays & no rehearsal: Mark periods without rehearsal (and even rehearsals kept during the holidays) so everyone is informed
Conductor interface: complete attendance view
- See at a glance who reported an absence or delay for each event
- Quickly identify missing instruments to adapt your rehearsal
- No more searching through 50 emails to know who will be there
Stage plans ready in minutes
Musicians are already pre-filled: you just need to place them
The problem before: No suitable tool existed for making a clean stage plan quickly. People wrote on paper, sometimes used PowerPoint, it wasn't clear and not always readable for technicians or orchestra members. And above all, you had to re-enter all names every time.
The Sostenutoo solution: When your orchestra is registered, the musician list is automatically retrieved. Musicians are imported automatically: you just need to organize the placement on the plan. You can also specify required equipment (music stands, chairs, conductor's music stand, conductor podium, or custom equipment). Then, export a clear PDF to share or print.
Pre-filled musicians
Active orchestra members automatically appear in the plan. No more typing names: you save time from the very first minute.
Multiple plans
Create multiple configurations (by venue, project, or ensemble size) and switch between them easily.
PDF export
Download the stage plan as PDF, clean and readable, ready to be printed or sent to technicians / stage managers.
How does it work in practice?
You open the stage plan manager for your orchestra
Musicians appear automatically: the base is already ready
You place the ensemble according to your stage (configuration, rows, stands...)
You export as PDF and share the plan in one click
Want to try without creating an account?
A free tool for creating stage plans is available online, without registration. Try it to discover how simple the interface is. Try the free tool →
Orchestra member management
Unique access code and full control over memberships
The problem before: You send information (programs, sheet music, dates) by email to all musicians. But throughout the year, new musicians join the orchestra. For them, you have to resend everything from the beginning: old sheet music, past programs, calendar... It's repetitive and tedious work.
The Sostenutoo solution: Everything is centralized in one place. When a new musician joins your ensemble with an access code, they immediately access all programs, sheet music, events and dates. You don't need to resend anything. They have access to the same information as everyone else, in the same place.
Unique access code
Each orchestra has its own personal code that you can change at any time. Simply share it with musicians authorized to join your ensemble.
Manual validation
Each membership request must be approved by an administrator. You know exactly who joins your orchestra and can reject unwanted requests.
Roles & permissions
Assign appropriate roles: musician, coordinator, administrator or owner. Practical for delegating management (programs/events/memberships) while maintaining clear control.
Virtual musicians
Add members without accounts (unregistered musicians, substitutes, guest performers) to keep a complete list and consistent statistics.
New musician membership process
The musician creates their account on Sostenutoo in seconds (email, password, instrument played)
They enter the access code provided by the conductor or the association's board
Their request appears in the admin interface. An administrator sees their name, instrument, and can approve or reject it
Once approved, the musician instantly accesses the programs, their instrument's sheet music and orchestra events
(Optional) Administrators can assign them a role (coordinator, administrator…) to share the management of the ensemble, ideal for board members
Total flexibility: multi-orchestra and multi-role
- Any user can be part of multiple orchestras and switch between them easily
- You can have different roles depending on the orchestra (musician in one, administrator in another)
- Manage multiple orchestras from the same account (wind bands, brass bands, chamber ensembles)
- A role doesn’t depend on the musical function: the conductor can be just a coordinator, and a board member an administrator. You assign rights however you like
- The owner can transfer orchestra ownership to another member
- Each orchestra's data is completely separate and secure
Child accounts & shared access
Ideal for youth orchestras, conservatoires and music schools: a parent or relative can manage a musician’s account (attendance, absences) from their own account, without sharing a password. Several relatives are possible for the same musician (separated parents, co-carers).
- A parent reports their child’s attendance and absences without logging in as them
- Several authorised relatives for one musician, each with their own account
- You can create a profile for a musician without an account, then attach their relatives
Centralized music programs
Organize your repertoire by season, period or project
The problem before: The program was sent by email, then modified. A second email, a third... Musicians never knew which version was up to date. Confusion guaranteed.
The Sostenutoo solution: One place, always up to date. When you modify the program, all musicians see the changes in real time, without needing to resend any email. No more confusion, no more outdated versions. Everyone has the same information, instantly.
Complete metadata
For each work: composer, duration, sheet music, YouTube links and directly uploadable audio files (MP3, WAV, FLAC…). Musicians have all the details to prepare their personal practice.
Ultra-simple organization
Change the order of pieces within a program with a simple drag and drop. Similarly, reorganize the order of programs among themselves. You can even move a piece from one program to another. No skills required, it's as intuitive as paper.
Reusable programs and history
Create a program, reuse it for multiple concerts or periods. Over the years, you keep the history of all your programs. It's your musical memory: find what was played, when, and with whom.
How does it work in practice?
You create a program from your admin interface (e.g.: "2024-2025 Season" or "Spring Concert")
You add the musical pieces with all information: title, composer, duration, description, and optionally YouTube links or audio files
Musicians find the complete program instantly on their device. Always up to date, always accessible.
Best practices for building your programs
- Give a clear and evocative name (e.g.: "2024-2025 Season", "Christmas Concert 2024")
- Fill in as much information as possible about the program's pieces (composer, duration, description)
- Choose the order of pieces within your program
- Use YouTube links and/or upload audio files directly for sound references
- Update regularly if pieces are added or removed
Advanced management features
- Hide a program from musicians (useful for preparing a future project without making it visible right away)
- Show hidden programs option reserved for authorized roles to review/edit what is hidden
- Unassigned pieces a dedicated space for unassigned pieces, to be moved to a program later (drag and drop)
- Audio files per piece – upload MP3, WAV, FLAC or M4A directly to each work. Accessible from the app with a built-in player.
iOS and Android apps
Available on the App Store and Google Play Store
Sostenutoo offers native apps for iOS and Android, free to download on the App Store and Google Play Store. Your musicians install them in seconds and immediately access their sheet music, programs and events.
The interface is fully optimized for mobile: intuitive navigation, fast loading, display adapted to all screens. Your musicians access their sheet music, programs and events from anywhere, even on the go.
Free download
Download the app for free on the App Store or Google Play Store. Installation in seconds.
Optimized interface
Intuitive navigation, fast loading, display adapted to all screens. Access your sheet music from anywhere.
Compatible with all devices
iPhone, Android, tablet, computer: Sostenutoo works everywhere. One account, accessible from any device.
Simplicity and responsive support
Intuitive interface and fast assistance
Sostenutoo was created by a conductor for their orchestra. The interface is extremely intuitive: no manual needed, no complicated training. You create a program, upload sheet music, add an event: everything is done in a few clicks.
If you have questions, our responsive support answers quickly by email. We know the needs of amateur orchestras and we constantly adapt the platform based on your feedback.
Instant onboarding
Quick onboarding. Create your first program in less than 5 minutes. Everything is clear, everything is intuitive.
Human support
A question? Send an email and get a quick answer. No chatbot, no complex form: a direct exchange.
Regular updates
The platform constantly evolves thanks to orchestra feedback. Discover our approach →
Clear documentation
Guides, FAQ and tutorials available to help you. Everything is explained simply, without unnecessary jargon.
Simple pricing, built for associations
- Free for musicians: they never pay anything to use the app
- A single subscription per ensemble covers the whole group, with a 30-day free trial, no card required
- Your data is secured (encryption) and stays yours: export anytime
- And if you’re a public body (conservatoire, local authority, music school), payment by administrative mandate (Chorus Pro) is accepted
Ensemble information, accessible to all
Contact details, rehearsal habits, contacts: all in one place (web/app)
The problem before: When a new musician joins the orchestra, you have to resend everything: rehearsal times, venue address, board contacts, ensemble habits... It's tedious and there's always the risk of forgetting something.
The Sostenutoo solution: Each user can view a page dedicated to ensemble information. Important info (description, location, rehearsal habits, board contacts) is centralized and always up to date.
General information
Ensemble type, location, description... Everything you need to get oriented quickly.
Rehearsal habits
Centralize recurring practical information to avoid reminders and last-minute questions.
Useful contacts
Main contacts are visible in the app: call or write quickly without searching for the right number.
Always up to date
One modification, and everyone sees the same information: no more different versions depending on messages.
Committee documents
A document space at ensemble level: the committee uploads files (PDFs, rules, practical info), either private to the committee or shared with all musicians. Documents can also be attached to an event or a piece.
Organize with sessions
Structure your season when your musicians change throughout the year
The problem before: In many orchestras, the musicians aren't the same all year long. Some join in the second semester, others only participate in a specific project. Yet everyone received the same information, including what didn't concern them.
The Sostenutoo solution: Create sessions to reflect the reality of your orchestra. Each session groups its musicians, events, programs and conversation. Musicians only see what concerns them, and your organization follows the rhythm of your season.
Groups that reflect your reality
First semester, second semester, specific project, concert period... Create as many sessions as needed, each with its own name and color for instant recognition.
Targeted events and programs
Assign your rehearsals and programs to one or more sessions. Only the relevant musicians see them in their calendar and program list.
Dedicated conversation
Each session automatically gets its own conversation. Discussions stay focused and relevant, without cluttering the orchestra's general chat.
One-click activation
Sessions are an option you enable when you need them. If your orchestra's lineup is stable all year, you won't be cluttered by this feature.
Real example: an orchestra with two semesters
You create two sessions "1st semester" and "2nd semester" each with a different color
You add the musicians of each period to the corresponding session
Rehearsals and programs are assigned to the right session. Each musician only sees what concerns them
Each group communicates privately through its dedicated conversation, without interfering with other sessions
Orchestra statistics
A dashboard to steer the season, and prepare the AGM
Track key information about your ensemble from a dedicated view: event participation, attendance, communication activity, and a global overview of programs, sheet music and members. Especially handy to prepare the AGM: an attendance and participation report, exportable as PDF. Reserved for authorized roles.
Absences & late arrivals
Track absences (declared / unjustified when applicable) and delays. Visualize the trend curve of absences and delays throughout the season.
Message activity
Visualize chat and announcement activity (messages, reads, reactions) to know if information is flowing well.
Sheet music coverage
Indicators on sheet music (by piece / by instrument) to quickly check if everyone has what they need.
Members & apps
Overview of members (including virtual musicians) and app installations to better support your group.
Prepare your scanned sheet music in a few clicks
Rename, split and straighten your PDF scores
The problem before: Your scanned sheet music is named "scan_001.pdf", it's crooked, all parts are in one huge file. You spend hours sorting them out before you can hand them out.
The solution: Three free tools that do the work for you. Rename your files in one click. Split a huge PDF into one file per instrument. Straighten and center your scans perfectly. That's it, simple as that.
Rename in 1 click
Badly named files? Drop your PDFs and the tool automatically renames them to "Composer – Title – Instrument.pdf". Clean and readable.
Sheet Music Splitter
One huge PDF with all parts? The tool automatically splits them into one file per instrument. Download everything as a ZIP.
Scan Straightener
Sheet music crooked? A few clicks to straighten it, center it and crop it perfectly. No more ugly scans.