Applications
Although the primary use of the QY10 is as a portable composing tool, it has other applications.
With its pattern-based sequencing system, it is particularly suited for use as an accompaniment device. Unlike other sequencers in the QY series, however, the QY10 cannot auto-harmonize its backing tracks to chords played on an external MIDI keyboard.
Another application is as a general purpose MIDI sequencer, controlling instruments with far superior sounds than those available from its own tone generator. For this use, however, it has several disadvantages, including fixed MIDI channel assignments and limited support for MIDI control information. The pattern-based design of its sequencer might also be considered a disadvantage in this context.
Read more about this topic: Yamaha QY10