Almost like a scientist

“Almost like a scientist.” That’s what someone says near the beginning of Ingredients for Disaster, Julian Phillips’s new 67-minute documentary about the music of the Swiss composer, pianist and bandleader Nik Bärtsch. Almost like a scientist. Well, yes. When Bärtsch talked after a screening in London this week, words like “architectonics” and “topography” entered the conversation. And Phillips chooses to illustrate the polymetric structures of the music through cunningly devised computer graphics that actually illuminate the interior design of pieces which tend have the four players working in different time signatures simultaneously.

On the other hand, not like a scientist at all. Not in effect, anyway. Listening to Bärtsch’s bands, either the “Zen funk” of Ronin or the “ritual groove music” of Mobile, can be a profoundly emotional experience, particular when he gives one of his shouted cues and the whole band changes gear like a sudden shot of adrenalin.

But it’s certainly complex music, particularly in its layered polyrhythms. He made me laugh yesterday when he briefly turned the conversation to good old 4/4. If you work all the time in less conventional metres, he said, then you decide to play something that superimposes 4/4 on, say, 5/4, it’s 4/4 that ends up sounding odd, implying that it gives you something new to work with.

In the film, he talks about some of his influences: the pianists Lennie Tristano (whose polymetric “Turkish Mambo” he recorded on one of his early albums), Ran Blake and Monk, and Stravinsky. In the discussion after the film there was also mention of James Brown’s band and of Zigaboo Modeliste, the drummer with the Meters (drummers are important to Bärtsch; that’s how he started out). But his great success is to have metabolised his influences so thoroughly that they became invisible as, over the years, he developed a music of true and complete originality.

This month marks 20 years since he began his Monday night sessions at the Exil club in Zurich, where the music has taken gradually shape. Ronin currently consists of Sha (Stefan Haselbacher) on bass clarinet and alto saxophone, Jeremias Keller on bass guitar, and the drummer Kaspar Rast, with whom Bärtsch has been working since they were nine or 10 years old. Each of them has something illuminating to say in the film, none more so than Sha, master of the bass clarinet, who demonstrates how one of the parts written for his instrument can lead, as the piece unfolds in its long narrative, to variations such as “ghost notes” and percussive tapping.

Like the Quintet of the Hot Club of France, the MJQ, the MGs, Astor Piazzolla Quintet and the Chieftains, Ronin is a band with a highly evolved, distinctive and patented character. There’s a new album by the basic quartet, called Spin. With the addition of three horns and a guitar, it becomes the Ronin Rhythm Clan, which performed at Kings Place in London a few years ago. I liked that line-up very much, and Bärtsch guided me to a couple of tracks released on Bandcamp earlier this year.

I wrote about Nik when he performed with the London-based visual artist Sophie Clements at the Barbican in 2019, and when Ronin played a night at Ronnie Scott’s last year. Tonight I’m going to see him playing piano duets with Tania Giannouli at the Wigmore Hall, as part of the EFG London Jazz Festival. He’s one of the most interesting musicians around, and it’s a pleasure to keep up with him.

* Ronin’s Spin is released on November 24 on the Ronin Rhythm Records label. The film Ingredients for Disaster will be available to stream on Amazon Prime and Apple+ from November 29. Bärtsch’s book Listening: Music Movement Mind is published by Lars Müller Publishers.