Keith Jarrett and Jan Garbarek - Spiral Dance video - Hannover 1976

Jarrett starts this in a mysterious sounding harmonic area, and Garbarek joins and starts to drift with him through this foggy territory a minute later. Bassist Palle Danielsson and drummer Jon Christensen gradually and quietly join leaving the tempo afloat. Jarrett and Garbarek both have beautiful singing sounds on their instruments. It's a wonder to hear how they meditate together. Garbarek lays out and leaves Jarrett to let the mood evaporate over half a minute's time. Then right at the 5 minute mark, Jarrett, with a tiny gesture, sneaks through a musical keyhole to start the "Spiral Dance", which we find is built around a repeated bass figure played with unchanging pitch, which Jarrett answers with two up-jumping chords at the end of every rep. It's a very funky sound which gets animated as Jarrett, Danielsson and Christensen find their groove. They build for two minutes until Garbarek plays the main melody of the tune which abandons the repeated figure and soars into new territory. The melody slips back into the bass figure and the solos start, allowing the band to eventually work itself into the kinds of rolling ecstatic frenzy that John Coltrane's bands were known for.The YouTubers who've listened to this already give this performance high marks and I do too. Here's the YouTube page for the video.