Jam tracks
A band to solo over: drums, bass and rhythm guitar, with the scale on the fretboard and the chord's notes lit as it plays.
Blues
Twelve bars, a shuffle and the pentatonic. Where most players start.
Rock and pop
Loops of four to eight chords with a straight beat.
Funk, reggae and ballads
Feel first: short notes in funk, space in reggae, long notes in a ballad.