Official Product Page - http://www.torquepowered.com/products/shoot-em-up-music
Recently, the folks over at InstantAction Inc. have published one of my music libraries for use by anyone in the professional, indie, and student game development community.
The Shoot ‘Em Up Music Suite is a collection of 16 tracks featuring royalty free professional video game music for the Classic 2D Space Shooter / Arcade Shooter genre. These tracks focus on action stages, boss battles, and multi-purpose game components. This library will serve as an excellent tool for your final in-game audio and placeholder needs. The genre of this music is a hybrid of synth, electronica, and rock elements.