Based on the manga series, Nodame Cantabile is a music/rhythm game where you lead a group of misfit musicians in an orchestra. You use the stylus to tap the screen in beat with the song, playing the part of the conductor Chiaki. The game features classical pieces from the anime series, as well as the Puri Gorota March! Nodame Cantabile has likely been inspired by Nintendo's popular Nintendo DS Ouendan/Elite Beat Agents series. You have the scene playing out on the top screen and you hit moving notes on the bottom screen.
Mermaid Melody Pichi Pichi Pitch Pichitto Live Start! is a licensed game developed by Konami and published for the Game Boy Advance platform. It takes inspiration from the Dance Dance Revolution series, using music and characters from the anime of the same name. It includes all the songs from the first Mermaid Melody GBA game and adds more from the second half of the TV series.
The Korg M01 is a new Nintendo DS version of Korg's M1 Workstation that comes courtesy of AQ Interactive.
The M1 was hugely popular in the late '80s and early '90s, and the 8-part multitimbral, 12-note polyphonic DS version will feature all of its PCM data, giving you 300 sounds. There's an 8-track/16-step sequencer, a master effect (either reverb or delay), and various editing windows, while data can be exchanged wirelessly between DSs.