1988
Original price unknown
Likely the last software developed by Yamaha for MSX computers released on cartridge, this successor to the Yamaha YRM103 allows editing or creating voices and performances for the Yamaha DX7II.
Considering it was released more than one year after the introduction of the second series of DX synthesizer, its rareness today and the fact that Yamaha didn't make any more updates to its MSX line of computers after the YIS805 in 1986, this cartridge probably wasn't on the market for too long.
It has mouse and disk support, and is not compatible with DX7 mk1 synthesizers.
