Roland Fantom G6 Kontakt Library -
Several boutique sound designers (e.g., Sample Magic, Loopmasters used to offer "Fantom Sessions"). These are usually recordings of arpeggios, bass hits, and chords played on the G6 and exported as WAV loops. You can drag these into Kontakt’s Beat Machine or map them chromatically in the Wave Editor.
If creating or tailoring a library: