Can I get the stems?

Yes, for most of the catalog. Where a track has stems you get all of them, typically five or six layers and up to sixteen: drums, percussion, bass, strings, brass, woodwinds, guitars, piano, keys, synths, choir, vocals, melody, atmospheres and sound design.

Stems are included with a plan or a single-track license, not sold separately. To see only tracks with stems, use the With stems filter in the music.