Loop, tempo and pitch

#Loop a section

1. 1
   Drag across the waveforms

   Press on the first bar you want and drag to the last. Drag down over more rows to include more stems; the stems you dragged over are soloed so you hear just those parts.
2. 2
   Let go

   The region snaps to the beat grid and starts looping straight away. The loop editor under the mixer shows Start and End in bars, beats and sixteenths; nudge them there, or drag the edges of the region.
3. 3
   Play

   The region repeats until you press Clear Loop, C or Reset. Prefer the keyboard? Start Loop (or C) marks the start at the playhead and a second press closes the loop. Loops also feed Export (export just the loop) and Send to Mastering.

#Tempo

Click the tempo in the header to open Adjust BPM. The detected tempo is your starting point; step it down to practise, up to challenge yourself, anywhere from 50 to 400 BPM, or type a number. Preserve pitch keeps the key where it is while the speed changes, which is what you want for practice. Leave it off and the song behaves like a record played slower: lower and slower together, a classic effect for producers. Reset to the detected tempo is one click.

#Pitch

Click the key in the header to open Pitch Shift. The slider moves the whole song in semitone steps from -6 to +6 while the tempo stays put; the dialog shows the resulting key as you drag, and marks the natural zone (up to 3 semitones either way) against the creative zone beyond it. Singers use it to bring a song into range, guitarists to avoid a capo. The chord panel transposes along with it. The detected key comes from the chord analysis when it is available, otherwise from a key estimate of the whole mix.

#The metronome stem

Every split includes a generated Metronome track that follows the song's beat grid, including tempo drift in live recordings. It is muted by default. Unmute it for a click that stays in time with the original performance, and it follows your tempo changes too.