The player lights up the buttons and keys of both hands and shows the finger number for every note, and plays the piece along with you.
Play the demo Download for free
For macOS, Windows, Linux, Android and iOS. No time limits.
B griff, five rows. This is how the player shows “Ode to Joy”: the button glows in the finger’s colour, and its number sits in the corner.
On the real layout you see both keyboards, including all 120 basses: fundamental and third basses, major, minor, seventh and diminished chords.
The button that sounds glows in the colour of the finger to press it with, and the next ones appear ahead of time so that your hand is ready. The left-hand mode, Stradella or free bass, and the registers of both hands are shown above the instrument, and duplicates on the auxiliary rows are marked separately.
You can enlarge the instrument: pinch on a phone or tablet, Ctrl or ⌘ with plus or minus on a computer. The buttons, labels and finger numbers stay sharp.
A teacher prepares a piece in the editor, a student plays it in the player on any device. One file serves both button and piano accordion.
Free for everyone who learns and plays
For teachers and arrangers
Editor pricingAbout the editor
Ready-made arrangements from editor users that you can play right on the site.
Editor users submit their pieces for review, and the approved ones go into a closed library: find a piece by title or composer and open it in the web player with highlighted buttons and finger numbers. Access comes with a library or editor subscription, and after a one-time purchase of the editor the library is free for a year. Subscribers can also download files for the apps, mobile ones included.
Flip a register and see how the player helps you work through a hard passage.
Press A–B twice and the chosen bars repeat without stopping. The metronome clicks every beat, and a bar of count-in lets you come in together with the player.
The tempo changes in steps of 25%, from a quarter to double, and the pitch stays the same. You can return to 100% with one press.
Display and sound switch on separately for the left and the right hand. Turn off the sound of the melody and play it yourself over the accompaniment of the basses.
Under the instrument runs real notation for both hands: slurs, dynamics, bellows, chord names and registers. The red line is where you are now.
The player records the instrument, the note lanes and the staff together with the sound in Full HD, horizontal or vertical for phones. It puts the title of the piece and your site’s address across the top, and right after you stop it asks where to save the file. It is free: a small link to our site stays at the bottom of the video.
Open a MuseScore, MusicXML, MIDI or LilyPond file in the editor. It lays out the hands, buttons, fingers and registers by itself.
The list of problems shows what is worth changing, and the piano roll and the staff let you fix every note.
One .accplay file works on a computer, phone or tablet, for button or piano accordion.
The player is free, with video recording. Only the editor is paid: by subscription or once, with a trial period.
Player
For learning, playing and video lessons on all platforms and in the browser.
Free
with no time limit
Editor by subscription
Pay monthly or yearly: for those who prepare pieces regularly.
from $10.52
Editor forever
One payment for the editor: for those who work with it all the time.
$156.85
Piece library
A closed collection of pieces to play on the site and in your apps.
$5.26 / month
Prices depend on your country. You can cancel a subscription at any time in your account.
The player is free on every platform and in the browser, and the demo pieces are already inside. In a minute you will see where your fingers should go.