Free Yamaha AN1X For iPhone May 7, 2015 by iPad Loops, Music Production Apps, And Hardware 0 Yamaha celebrates the 40th Anniversary of Yamaha Synthesizers with the Yamaha Synth Book. This app features a complete history of Yamaha Synthesizers, an integrated virtual analog soft synth, and... Free Apps, Synth Apps an1x for iphone, Free iPad Synth, free iphone synth, Free Yamaha AN1X For iPhone, ipad synth, iphone app, iphone synth, Yamaha, Yamaha Synth Book.