SynthStation!

Low $1.99 price extended Compatibility: Requires iOS 4.3 to iOS 6.1.3Features Three virtual-analog synthesizers, each with three oscillators More than 50 drum kits, plus a built-in sequencer Create melodic and accompaniment parts using arpeggiator with preset patterns Core MIDI-compatible: works with any Core MIDI device as a synth module on your iOS device Real-time recording Unlimited creativity with effects and filters Compatible with iPad, iPhone, and iPod touch Requires iOS 4.3 or laterTransform your iPhone into a music production studio. SynthStation transforms your iPhone, iPod touch or iPad into a portable music production studio for mobile music creation. SynthStation Studio enables you to create and produce music anywhere on your iPhone, iPod touch or iPad.