Yamaha Synth Book is a multimedia app for iPhone that offers a comprehensive experience for synthesizer enthusiasts. Developed by Yamaha Corporation, this free app provides users with a complete history of Yamaha Synthesizers, an integrated virtual analog software synth, a DJ Performance app for controlling audio phrases, and serves as a portal to Yamaha's online synth communities.

One of the standout features of Yamaha Synth Book is the Music Remixer. This app allows users to combine and play audio phrases assigned to pads in real time. With a wide range of effects and mixer functions, it can be used for simple performances or more intricate musical creations.

Another notable feature is AN2015, which features virtual analog modeling similar to the AN1x synthesizer. It also includes a drum part that can keep the beat going while you perform and control the main synth part, adding depth and complexity to your music.

Yamaha Synth History is a fascinating addition to the app, providing detailed "behind the scenes" information about the design and development history of Yamaha synthesizers spanning over 45 years. This feature is a must-read for all synth fans, offering insights into the technological breakthroughs that have made Yamaha synthesizers innovative and successful.

Finally, the app includes PORTALS, which provides links to Yamaha's online communities. Users can connect with other Yamaha Synth fans around the world on Facebook or join Yamaha's own online synth community at yamahasynth.com, fostering a sense of community and collaboration among users.

With its wide range of features and resources, Yamaha Synth Book is a valuable tool for anyone interested in synthesizers. Whether you're a beginner or an experienced musician, this app offers a comprehensive and immersive experience for all synth enthusiasts.