This sophomore release by the working trio of Dave Rempis, Joshua Abrams, and Avreeayl Ra shows a band doubling down on the slow, patient approach to improvising that characterized their first release, 2014’s Aphelion. The trio continues to pulsate, expanding ever outwards, yet returning to a central core each time to launch their next adventure. The live sets presented on this new two-disc set document that musical expansion and contraction within the trio, but also take things a step further as the band adds enigmatic keyboardist Jim Baker to the fold as a special guest for disc two. Baker’s a logical choice to meet up with these three; his own trio with Abrams and Ra, although a sporadic grouping, dates back to the early aught’s, and he’s worked with both in countless other contexts across many years. Similarly, a multitude of collaborations between he and Rempis date back to the late 1990’s. On Perihelion, these two overlapping circles spiral seamlessly into focus to demonstrate the gravitational strength of a central core built by decades of shared history.