The SPT-667 Phrase Trainer makes learning riffs by ear really simple. Say you want to copy a guitar solo. The Phrase Trainer lets you load song (wav,mp3,wma etc...) slow down the playback speed to as little as 50% (or double-speed,why not?)of the original without changing its pitch, and loop the playback to repeat the phrase over and over until you get it! Or,when you mastered lick you are working on,you can change pitch of the song and practise.
Features:
* Pitch shift in -12...+12 semitones
* Slowdown/speedup from -50%(half) to 100% (double) speed
* Define up to 4 loops per song
* Double loops,halve,shift right,shift left
* One click saving,no boring "save" dialogs etc...
* MUSICIAN INTERFACE not USER INTERFACE !!!
* Effects-reverb,5band equalizer,stereo width
* Presets
* Keyboard shortcuts for all play-loop-pitch-tempo functions
* "Reverse" button included,so you can start finding words like "hell","satan","666" in mega-hits (please mail me if you find some:))

The license of this software is Free Trial Software, the price is $29, you can free download and get a free trial.