iPhone Screenshots


Trapezoid is an amazing Hammered Dulcimer app for the iPhone.

Written by an experienced Hammered Dulcimer player, this virtual dulcimer sounds and plays like the real thing!

This app has the full range of a standard 12/11 style (9/9 style for iPhone 4) instrument and supports both Standard and Michigan (octave) tunings.

12/11 means there are 12 bridges on the Treble (left) side of the instrument, 11 bridges on the Bass (right) side of the instrument.

To play, just touch the strings on either side of the left (Treble) bridge or the left side of the right (Bass) bridge just like on the real instrument.

To get repeated note "drag roll" effects, drag quickly horizontally across the strings. The sensitivity of the drag effect may be set on the settings screen.

Touch the "?" to show the note names for the strings.

Playing Hint for iPhone 4 and iPhone 5 Users:

On the smaller screen phones the strings are pretty close together. If you are having trouble hitting the notes you want, show the note names by touching the "?" and then, when playing touch directly on the note names for best playing accuracy.

Touch the "S" or "M" below the "?" to toggle between Standard and Michigan (octave) tuning.

Touch the "Shhh" icon on the upper right corner to quiet all the strings.

Touch the "i" to bring up the settings screen where you can enable or disable the drag roll feature and set the roll sensitivity for how far you need to drag to get the roll effect.

To truly experience the full stereo spread of the instrument, plug in a set of headphones or amplified speakers.

Audio samples of Wes Chappell's amazing dulcimer provided by Jesse Chappell from ThumbJam.com. The instrument was built by James Jones, from Bedford, VA.

I have played and taught the Hammered Dulcimer for over 20 years. This app sounds and plays as close to the real instrument as I'm capable of doing on a touch screen.

Be sure to visit the AppCordions.com website to watch the demo videos!

If you enjoy playing the app, please consider posting a rating and review on the iTunes App Store!

What's New

Version 1.3

Minor bug fixes and performance improvements.


Michael Eskin
38.1 MB
Requires iOS 8.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Michael Eskin


  • Family Sharing

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

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