- Audio composer redesigned
- Tons of bug fixes

Bug fixes

This update from Apple will improve the functionality of this app. No new features are included.

Fixed sample octave offset bug introduced in the last iPhone version. Sorry about that!

Hayden Duet System Concertina is now a universal iPhone/iPad app!

The iPad version is based on the full R. Morse Beaumont model with the addition of an extra D# on the LHS. This makes it possible to play all of the commonly available Hayden concertina variations on the app.

IMPORTANT: Since you may want to play chords with four or more fingers on the screen at the same time, before playing, disable "Multitasking Gestures" on your iPad (in the Settings app, under the General section, turn the Multitasking Gestures switch to the off position).

Thank you to Don Taylor for the gorgeous new iPad version graphics!

Hayden Duet System Concertina is now a universal iPhone/iPad app!

The iPad version is based on the full R. Morse Beaumont model with the addition of an extra D# on the LHS. This makes it possible to play all of the commonly available Hayden concertina variations on the app.

IMPORTANT: Since you may want to play chords with four or more fingers on the screen at the same time, before playing, disable "Multitasking Gestures" on your iPad (in the Settings app, under the General section, turn the Multitasking Gestures switch to the off position).

Thank you to Don Taylor for the gorgeous new iPad version graphics!

Hayden is now a universal iPhone/iPad app!

The iPad version is based on the full R. Morse Beaumont model with the addition of an extra D# on the LHS.  This makes it possible to play all of the commonly available Hayden concertina variations on the app.

Thank you to Don Taylor for the gorgeous new iPad version graphics!

You may now transpose the pitch up or down up to one octave in semitone increments on the settings page (touch the "i")

Touch the number to the right of the transpose slider to reset the transpose to zero.

When transposed, the note labels do not change, just the pitch produced.

Bug fixes and performance improvements.

Updated for iOS 11

First update in 5 years!

Supports iPhone 4, 5, and 6.

Now works with iOS 7, 8, and 9

Complete rewrite of the audio engine for better quality sound, more responsive and faster play, and dramatically lower memory requirements. No more need for the release slider for smooth sound.

Found and fixed a possible crash issue on iOS4.

Minor bug fix for potential stuck note issue.