Symphonic Tower Defense
You are the Conductor of an Electronic Symphony. Build defensive towers to keep the music from getting out of control. Each tower responds to a particular piece of the song, and the enemies spawn to the beat! You better think quick - this is a very fast-paced Tower Defense game!
Yellow goes with the Melody, Green kicks with the Bass, Red zaps along with Strings and Synth, Pink likes Claps and Snares, Blue plays a shocking Piano/Chime/etc.
Also don't forget about the music attacks! Fermata, Szforzando Bomb, Decrescendo, and more!