The Backtrak BT-300 has 4 playback speeds (full speed, 2/3 speed, 1/2 speed, 1/3 speed). These speeds allow you to slow your recorded sample while maintaining the "key" or "pitch" in which the original was recorded. This powerful feature lets you slow down parts or phrases of songs so that you can "decode" and learn them. For lyrics, the BT-300 lets you slow down a wordy section so you can hear each lyric at a speed you can understand. You can even use the sample playback capabilities of the BACKTRAK during a performance.
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