Musix is a customizable multiple-layout isomorphic musical keyboard. It uses a hexagon layout where in each hexagon on the screen is a note, and surrounding hexagons are harmonically related.

Wikipedia explains: "An isomorphic keyboard is a musical input device consisting of a two-dimensional array of note-controlling elements (such as buttons or keys) on which any given sequence and/or combination of musical intervals has the “same shape” on the keyboard wherever it occurs – within a key, across keys, across octaves, and across tunings."

What this means is that once you have learned a pattern, say a chord or a scale, that pattern is the same for all keys, even the dreaded A-Flat! What's more, you can learn to play melodies on a traditional keyboard by playing them on the Musix keyboard and watching where the sharps and flats go.

Songwriters benefit by discovering new melodies and musical relationships. Novices find it easy to learn to play. Experienced musicians are rewarded with an intuitive interface.

There are many isomorphic keyboards out there, from concertinas, accordions, and "jammers" (which use the wicki-hayden layout) to harmonic-table keyboards and more. You can have them all in one application, and more besides.

Hexagonal isomorphic keyboards are defined by the harmonic relationship between the keys. You can define the relationship in two directions, say a major third and a minor third, and the third direction is the difference of these two intervals (in this case, a semitone).

Musix comes with a set of built-in layouts which use different harmonic relationships between the notes. Each layout has its own advantages and disadvantages. For example, the harmonic table layout allows you to play a major or minor chord with one finger, by touching at the intersection of any three hexagons. The Wicki-Hayden layout puts all the white keys together. Try them all and find one that works for you.

Musix has six real-time FM-synthized instrument sounds. No wavetables here. Each note sound is synthesized on-the-fly, meaning that you get the full richness of bass and brightness of treble that the ipad speaker or your headphones can generate.

You can change the size of the keys to fit your fingers and your dexterity - start practicing with epic-sized keys and as you get better you can make the keys smaller to give you more notes on the screen. Keyboard layouts are fully customizable - create your own isomorphic keyboard centred on any note. Remove the note labels for a clean look.

Six instrument sounds are included in:

• Accordion
• Bell
• Brass
• Clarinet
• Spaceylophone
• Xylophone

Musix Demo Video:

New in v1.1.2

• Added a link to subscribe to future Musix and Musix Pro (to be released) news.
• Fixed a bug which did not allow background audio
• Fixed an iOS bug where selecting default layouts causes the application to crash.

New in v1.1.1

• Fixed Audio Bug for iPod Touch

New in v1.1

• iPhone / iPod Touch Support and a sliding layout!
• Musix now works the iPhone 3GS, iPhone 4, iPod Touch 3rd Gen and iPod Touch 4th Gen. All features except designing your own layout intervals are supported!
• The entire hexagon layout can be slide around on the screen so you can hit the notes you want quickly.