YDS Controller is a dedicated app by Yamaha Corporation designed to elevate the performance of the YDS-150, offering advanced sound creation capabilities through instrument settings and sound editing. This app allows users to make detailed and intuitive adjustments that are beyond the capabilities of the instrument itself.

With YDS Controller, users can effortlessly edit voices, including saxophone tones like alto, soprano, tenor, and baritone, along with synthesizer and shakuhachi tones. Additionally, effects can be fine-tuned to create intricate sounds. Customizing fingerings by changing or adding new ones is also supported.

Moreover, the app enables users to adjust instrument settings such as breath resistance, response, and tuning, enhancing the overall playing experience. The fingering list feature allows for easy display and checking of registered fingers, providing a convenient reference for users.