Music

Jazz multi-instrumentalist Sam Rivers, who died at 88 in December 2011, recorded with many trios in the 1970s. But his most celebrated trio was barely recorded at all. In 2007, it played a reunion concert — its first in 26 years.

If you've been watching the HBO series Treme with us, welcome back.

If you're new here, welcome in the first place. WBGO's Josh Jackson, a New Orleans native, and I have been watching the music-saturated program set in post-Katrina New Orleans for two years now. After every episode, we try to establish some context for the many musical references and live performances the show features.

Albums made by collections of professional studio players once had a bad reputation with the traditional rock audience. Such works were supposedly arid and chilly — more like the results of a board meeting than the recorded adventure of an organic group of fabulous friends. Some music fans may still feel that way, but they are few. Nowadays, a tight-knit gaggle of session musicians like the Analog Players Society gets points from traditionalists simply because the music is made by flesh and blood.

By now, everyone's heard of Kickstarter, the website that lets people with an idea or project ask other people to contribute toward realizing it. It's called crowd funding, and this summer's big success story was musician Amanda Palmer. She raised more than $1 million to produce her new album. But crowd funding doesn't work for every musician every time.