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

Faster response time and sound quality improvements.

The four regulator pairs now may be played on the MIDI channel one higher than the chanter starting on MIDI note 64 (E3).
MIDI notes 64 - 67 on the regulators channel play the regulator pairs. These notes match the mapping for the same baritone/tenor regulators used in the iPad version of the app.

More robust support for using the app as a sound module via CoreMIDI with other MIDI file player apps.

The four regulator pairs now may be played on the MIDI channel one higher than the chanter starting on MIDI note 64 (E3).
MIDI notes 64 - 67 on the regulators channel play the regulator pairs. These notes match the mapping for the same baritone/tenor regulators used in the iPad version of the app.

More robust support for using the app as a sound module via CoreMIDI with other MIDI file player apps.

The four regulator pairs now may be played on the MIDI channel one higher than the chanter starting on MIDI note 64 (E3).

MIDI notes 64 - 67 on the regulators channel play the regulator pairs. These notes match the mapping for the same baritone/tenor regulators used in the iPad version of the app.

Bug fixes:

Fixed issue with MIDI Controllers that send Note-On events with velocity zero instead of sending Note-Off events.

The four regulator pairs now may be played on the MIDI channel one higher than the chanter starting on MIDI note 64 (E3).

MIDI notes 64 - 67 on the regulators channel play the regulator pairs. These notes match the mapping for the same baritone/tenor regulators used in the iPad version of the app.

Bug fixes and performance improvements.

The four regulator pairs now may be played on the MIDI channel one higher than the chanter starting on MIDI note 64 (E3).

MIDI notes 64 - 67 on the regulators channel play the Regulator pairs. These notes match the mapping for the baritone/tenor regulators used in the iPad version of the app.

MIDI Pitch Bend is supported for the chanter, up to two semitones in range.

Bug fixes and performance improvements.

Added support for MIDI pitch bend messages. Pitch bend response is based on a two semitone maximum bend range.

Default for chanter bottom note is now 69 to match the Fagerstrom Uilleann Technopipes.

Added control for setting the drones MIDI channel.

Changed MIDI offset slider to Lowest MIDI Note for clarity.

New feature:

MIDI Chanter control for the Fagerström Technopipes and other MIDI chanters.

Connect your MIDI chanter first using a hardware MIDI interface, then launch the Uilleann for iPhone app.

Use the MIDI Chanter controls on the settings page to set the MIDI channel and lowest MIDI note for your MIDI chanter.

Range of the lowest MIDI note is from 55 to 79.

Drone MIDI channel is 15

MIDI default parameter values are based on the Fagerstrom Scottish Technopipes:

Drone channel: 15

Chanter channel: 1

Lowest Note: 67

MIDI channel and transpose settings are saved on exit.

Changed bottom note MIDI offset to be relative to MIDI note G3 = 67 to match most Fagerström Technopipes MIDI chanters.

Major new feature! You may now play the app chanter sounds using a hardware MIDI chanter like the Fagerstrom Technopipes and other MIDI chanters.

Connect your MIDI chanter first using a hardware MIDI interface, then launch the Uilleann for iPhone app.

On the controls page, set the MIDI channel and bottom-D transpose (relative to MIDI note D = 62) for your MIDI chanter.

Default transpose is -7 for the Fagerstrom on which the bottom note is MIDI note A = 69.  For a different hardware chanter, adjust the transpose as required.

MIDI channel and transpose settings are saved on exit.

For the drones, sending any Note On message (Note number < 80) on MIDI Channel 15  from your hardware MIDI chanter will start the drones, and the matching Note Off message for the start note will stop the drones.

Alternately, touch the drone graphic on the iPhone to start/stop the drones.

Updated for iOS 11

Completely rewritten to support the iPhone 5/6 and iOS 8 and 9.

You can now play in the keys of D, C#, C, and B

Full balance control for the chanter, drones, and regulators on the settings page, along with drone chorus effect level and reverb level.

Found and fixed root cause of possible iOS4 crash. Complete rewrite of audio engine for more responsive and faster play, and dramatically lower memory requirements.

Minor bug fix for potential stuck note issue.

Minor change in background graphics to show the alternate regulator touch areas.

Added a new additional touch area for the regulators located immediately above the lowest two white keys in the background image. This makes it much easier to play the regulators when playing the lowest chanter keys, particularly the bottom D and low E.

Both the lowest C and C#, or the new background touch area can now be used for playing the regulators.