McChords 2.11

the author of this app says:

McChords will display the notes of selected chords on a piano keyboard. The key and chord are selectable by way of on-screen buttons.

There is also an option for playing the individual notes of a chord or scale.

Version 1.21 improvements include:

• A color icon that no longer has a white background when the third-party application, Chrome, is used
• Selected keys are now blue on a Color Palm™ Connected Organizer
• The "Get Info" icon shows up in the command bar on Palm OS® 3.5 device or later
• The grayscale selected key has been made a little darker