Electron ECHO mini piano app recently received 9 positive reviews on iPhone, iPad, and Android devices, and 1 negative reviews. Users in the United States have given Electron ECHO mini piano app an average rating of 5.00 out of 5 stars, based on a total of 9 ratings since its release on Jan 16 by Emil Korngold. Can you share your positive or negative thoughts about Electron ECHO mini piano?