BtBx (”BeatBox”) is a music sequencer for the iPhone or iPod Touch.

Any fan of electronic music will love this App! From the beatbox site:

“BtBx gives you instant access to the world of electronic music with big drum sounds and acid-style synthesizers. With an easy to use sequencer and keyboard view, you will have creative freedom without overwhelming you with complicated options.”

Features Include:

8 Drum Sounds
2 Instrument Sounds
2 Real-Time Synthesizers
16 Step Drum Machine Style Sequencer
16 Patterns
Keyboard with +/- 3 Octave Range
Realtime Mutes
Tempo Adjustment (40-240 BPM)
Low Pass Filter with Cutoff Frequency and Filter Resonance
Distortion Effect
Delay Effect Synced to Tempo
Cut and Paste Patterns
Erase Pattern
Erase Instrument
Multiple Pattern Playback
Auto-Saves Information so no data is lost
Instruction Manual is Built into the Application

Check out the youtube videos here!