iPhone Music Software: To celebrate Moogfest, Hexaphone (App Store link) is free from October 29th through October 31st.

=Hexaphone is a musical keyboard for iOS designed for real-time performance and improvisation. It provides a simplified musical scale, background drum loops, a unique Motion Filter, song recording and sharing, and audio export via AudioCopy or WAV file.

About Hexaphone

Hexaphone was created to give musicians a flexible tool that’s small enough to fit in your pocket, but powerful enough to deliver big, expressive musical performances.

Features:

• High performance graphics and sound – grace notes, complex rhythms and staccato expressions all come through clearly
• Multi-touch support – up to five simultaneously
• 11 Scales which allow you to change which notes are on the keyboard – 6 notes per octave over 5 octaves (31 total notes):
  • Blues (Hexatonic)
  • Dance
  • Trance
  • Minor (2 variants)
  • Major (2 variants)
  • Plus: Lydian, Mixolydian, Phrygian Dominant and Chromatic
• 5 Patches which change the sound of the keys:
  • Power Square: Gritty synth tone
  • Power Saw: Heavy distortion
  • Tonewheel: Cool organ tone
  • Funky Square: Wah-wah sound
  • Trance Pad: Ideal for chords
• 16+ Drum Loops to play over
  • 5 Hip Hop
  • 3 Chillout
  • 4 Rock
  • 4 Dance
• Keyboard shows 13 notes at a time, slides with your touch, and snaps to half-octave increments
• All notes can be labeled with their musical interval – minor 7th, root, major 3rd, tritone, etc.
• Record your playing into files, and then play along with it. Manage your recordings – save, rename, delete.
• Tunable to any key, so you can play along with other instruments
• Hexaphone is best enjoyed through the headphone jack to bring out the bass sounds.

Hexaphone was designed to run on all iPhones, but it really shines with the 3GS and iPhone 4. 3G users can improve performance by turning off the KEY ILLUM feature.