The Nintendo DS is not considered a musical instrument.
There are music games, yes, and there was the brilliant in concept but flawed in execution Jam Sessions guitar simulator for the DS. (Full disclosure: I spent about two weeks just trying to play Jonathan Coulton’s RE: Your Brains. It’s just too unwieldy on a directional control pad and a strum bar on the touch screen.)
The KORG DS-10 Synthesizer for the Nintendo DS is exactly what it says it is. It is not a title for a KORG Synthesizer based game for the DS. It is, in fact, a synthesizer and sequencer for the DS.
I’m going to let that sink in for a second.
It’s not a musical instrument simulator of any sort, it’s actually a synthesizer and a sequencer. And on top of that, it uses the DS screen like a poor man’s KAOSSilator. Which is a lot of fun. Here’s a video showing what four of them together can do.
They wirelessly synchronize for beat matching and playback. Of course, you’ll need a mixer to take full advantage of that, but who doesn’t have one laying around?
In short, it’s awesome.
Review based on doodling in the sequencer window and editing note lengths and values, and then adjusting the drum kit sequencer so that it repeats doom-tch-doom-tch-doom-tch while panning speakers from left to right and repeating for several measures before using the kaoss pad function to adjust peak and cutoff values for synth 1, while synth 2’s track is all doomp-doompdoomdoom-doomp and synth 1 and 2 mixed through the flanger FX at the end with the knob turned all the way wet and mixed so that the bass line on synth 2 isn’t overpowering the entire song at 142bpm.
I did not get to try the multiplayer mixing aspect of this program but god help me if I get another copy.