blumia / harp

a little autoharp for your phone and thumbs!

Autokalimba

A chordal musical instrument for your thumbs! Play it here on a phone.

Or listen here: ✨ https://twitter.com/search?q=%23autokalimba&f=video ✨

(I will be very happy if you tweet your own performances and tag them #autokalimba!!)

Features

• Press a bass note key on the left to play it.
• Press a chord key on the right to play a chord on the last bass note you played!
• The middle slider controls the pitch range of bass notes.
• Wiggle your thumb up and down on the chord key to add vibrato.
• Press Settings in the top-left to tweak instrument and strum behavior.
• With split keys enabled, press the bottom part on a bass key to play a 5 in the bass.
• There are some hacky QWERTY controls (enable Horizontal chords under settings and hit some keys to find the layout).

Un-features

• Triads

Instrument credits

• Guitar: SpeedY on freesound.
• Kalimba: arioke on freesound.
• Rhodes: tim.kahn on freesound (low, high).
• Toy: From the Mario Paint soundfont.
• Piano: Samulis on freesound.
• Fluffy: From the Animal Crossing soundfont.
• FM: From a certain popular FM synthesizer.

FAQ

Why is the repository called harp?

When I made the repository, I only knew I was making something like a digital autoharp. The name "autokalimba" was suggested by @profanegeometry on Twitter, and it stuck, but foldr.moe/harp is easier to type into a URL bar, so I didn't want to change the repository name.

What are 7s, 13s, ø, and o?

Those are: 7sus4, 13sus4, m7♭5, and dim7. I had to get a bit creative to fit everything on the buttons.

By the way, the II/ button plays chords like D/C or E♭/D♭. It's a nice Lydian scale-y sound.

Your vibrato code causes slight pitch drift when I don't exactly center my thumb on the chord button!!

Yeah! Isn't it cute??