Electron ECHO mini piano app analytics for December 21

Electron ECHO mini piano is a simulated version of a popular musical toy from the 1980's. Just like the real thing, it (optionally) detunes as your battery depletes! Includes a FREE songbook with instructions for classic and modern melodies and an extensive essay on the original device. IT'S A SYNTH Modeled after the original device sound through wave shape analysis. No cheap samples, it's a synthesizer! FREE SONGBOOK Includes free songbook. Learn how to play your favorite melodies. More songs added in future updates, free of charge! FOUR SKIN COLORS Choose your favorite color from four available skins! REVERB EFFECT Pretend you're playing in a large hall! BACKGROUND AUDIO Play along with music from iTunes, Spotify or any other music app you might use! OCTAVE DOWN Too pitchy sounding for ya? With the flip of a switch you can tune the keyboard down by one full octave! SUB-OSCILLATOR Want to get a bit of electro bass going? Optionally add a square wave sound tuned one octave below the notes you play! Get your retro on, get back to the 80's with Electron ECHO mini piano NOW!