This is a really impressive app, Intua have gone further than just transferring the design of standard composition software onto iOS. Instead, they've used the touch screen to create an extremely usable and quite original piece of software that suits the needs of a pro musician.
 
There are two methods of inputting your music:
 
Drum Machine
 

- Up to 128 trigger pads: 16 pads over 8 different banks
- Chop Lab: Slice audio loops to automatically create new sound presets
- Control sound parameters on individual pad: volume, pan, mute, output bus, semitone, fine tune, reverse and autoscaling
- Low/high pass filter per pad with cutoff and resonance control
- Choose between various pad trigger modes: one-shot, hold & loop
- Customisable envelope (ADSR) control for each pad
- Exclusive groups and polyphony management
- "Live" modes: trigger, mute, reverse, velocity and tune spreading.

 
 
Keyboard 

128 keys keyboard with pitch wheel, double keyboard mode, note display and zoom controls
- Easily create your own instruments from any sample combination with the keygroup editor
- Volume and filter ADSR envelopes
- Low/high pass filter with cutoff, resonance and key tracking
- 2 LFOs with customizable amplitude, offset and rate (synchronizable), controlling volume, pitch and filter parameters
- Polyphony control, with up to 32 voices per keyboard sampler
- Legato play mode with customizable glide
- Keygroup controls: volume, pan, semitones, fine-tune, reverse and one-shot, hold, hold & loop trigger modes

So as you can see from these features, inputting and recording your own music is easy, as is using the keyboard and drum machine. You can also record or import your own samples, and alter the sounds of the instruments built into the app.

Recording is simple, everything is on an edit and a mix window, so even when you've recorded your sounds, you can still do a helluva lot to them:

- Create unlimited instrument and FX tracks
- Automations: Record, edit and replay instrument and effect parameters
- Record, draw, arrange and resize patterns along the timeline to build your song
- Compose and modify patterns with a piano-roll interface. Edit notes, parameters, and automations.
- Instrument and effect recording options: Quantize, take or partial undo, pre-roll, Overdub, note erasing.
- Includes multiple convenient tools such as zooming.

The wave editor allows you change the pitch and timing of individual notes, so you can punch in your music rather than playing it in, or simply just quantize and pitch correct what you have played to eliminate any unwanted mistakes. Wave editor features include:

- Full-fledged wave editor with intuitive pinch and selection for manipulating samples
- Basic edition tools: trim, cut, copy, paste, with 8 levels undo/redo
- High quality time-stretching and pitch-shifting algorithms
- Audio tools: normalize, silence, reverse, fade in and out, cross-fade
- Record new samples from device microphone or plugged instrument
- Loop points and tempo/signature editor

Once you've finished your mix, you can share via Sound Cloud and iOS Pasteboard. The importing of samples is also easy, especially with an integrated FTP server for import and export.

All in all, an extremely comprehensive App, with everything planned to perfection. It is a good bit of fun for those first getting into production and composition, but you can also make some brilliant sounds on it if you know what you're doing.

Fully recommended.

Compatible with: iPhone 3GS, iPhone 4, iPod Touch (3rd gen, 4th Gen), iPad. Requires iOS 3.1.2 or later

Priced  £11.99 / $19.99

More Information

• Intua.net
• iTunes App Store Link

Get the latest headlines, offers and more in our cool sonicstate newsletter - delivered to your in box every week