"Good improvisation communicates harmonic progression melodically. Effective melodies manipulate harmonic content through the use of guide tones and preparatory gravity notes, masterfully woven in systematic tension, release, and transparent harmonic definition."
One of the greatest trends for the hobbyist/semi-professional musician is the democratization of recording opportunities. With an iPad you don't even need a dedicated multi-track unit or array of mixing console and high end effects processing.
At our recent NAMM trip, we were captivated by the Focusrite "iTrack Dock." With few quality microphones and a paltry $199 US, you can make some dazzling mulitrack recordings on an iPad. Check out their product tour demo.
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