By default, music can be generated without problems.
It fails no matter what sample rate or sample format is changed.
It fails even if set to 48000Hz,16bit.

The error message is as follows
Qsynth1: Failed to create the audio driver (wasapi). Cannot continue without it.
Other Drivers can be initialized without problems.

I thought the problem was that it is a Japanese environment,
All other Drivers can be initialized without any problem.