iPad Screenshots


Based on Hohner's iconic Corona Classic diatonic accordion, this intuitive virtual accordion app feature a super responsive, three-row fingerboard that plays and sounds like the traditional instrument and now plays in all five of the most popular tones: EAD (Mi), FBbEb (Fa), GCF (Sol), ADG, and BbEbAb.

The Hohner SqueezeBox Pro app allows musicians to practice chord combinations, scales, and songs on-the-go. Practice in headphones, or plug into amplified speakers for live performance.

Simply touch in the bellows area to toggle between bellows push and pull, then play on the buttons.

Since you may want to play chords with more than 3 or 4 fingers, you'll need to turn off "Multitasking Gestures" in your iPad's Settings, under General/Multitasking Gestures.

Touch the sliders icon at the upper right side of the screen to bring up the controls where you can select the tone (EAD, FBE, GCF, ADG, or BbEbAb), choose between M and MM reed sounds, and control the volume and reverb settings.

Set the MIDI channel using the "MIDI Channel" slider.

Touch the "?" to cycle through the note tab and note name label styles.

Touch the "i" button to bring up the help screen.

Touch the "Tabs" button at the top to bring up the list of song tabs.

Touch the "T" button at the the top to show/hide the song tab display.

All settings are saved when you exit the app and restored the next time you run it.

This app is ideal for the beginning student or professional musician who needs a simple carry-on companion to compliment his or her actual accordion. While not meant to be a replacement for a real accordion, the app is a convenient and easy tool for practicing, learning, or teaching.

What's New

Version 7.1

Faster playing and audio quality improvements.

Simplified Reverb controls. Now just one control to set the reverb level.

MIDI Control: Sounds can be played through MIDI from an keyboard or other MIDI player or controller applications.

Set the MIDI channel for the treble side using the "MIDI Channel" slider on the settings page.

Ratings and Reviews

Hey r.alarc and Still Learning too


r.alarc: The C5 and G6 buttons have the same note on the pull and different notes on the push. This is correct and matches the standard 3-row Corona GCF button layout.

Still Learning too: Please work with the developer directly rather than use the review system for tech support. I'm sure he can fix whatever is going on if you work with me on this. Thousands of others use the apps every day without the issue you describe, have you tried the most basic things such as force-quit and relaunch the app, or done a soft-reset of your iPad and tried relaunching?

Awesome app!


Great little app, i bought several. This ipad is the way to go for this app, the mini is a bit small but it works and you get used to it, plus at least you can figure out all those songs you couldnt play because you only own one real accordion, plus theyre cheap! NOTE: it works perfectly but remember to turn OFF zoom or it wont work.

Two buttons only

Familia Teran

I bought this because it looks like a good learning tool. The problem is that for some reason I can only play two buttons at a time even when I enable or disable multi-gestures on my iPad 3(the new iPad) and even having the latest software update. If I can play with more than two buttons it will be a 5. Maybe there is a setting I have to change...if anybody knows let me know. In the meantime it is a one star.

Developer Response

This is a 4 year old review, but you can definitely play more than two buttons at a time if you disable multi-tasking gestures on your iPad.


Michael Eskin
89 MB
Requires iOS 10.0 or later. Compatible with iPad.
Age Rating
Rated 4+
© 2018 Michael Eskin


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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