As long as the YouTube benefactor in Holland keeps posting new segments from that 1972 Dave Brubeck concert in Rotterdam, Rifftides will keep bringing them to you. The piece that just popped up, “Someday My Prince Will Come,” was a staple in the classic Brubeck quartet’s repertoire before it disbanded in 1969. Paul Desmond reaches into what he would no doubt refer to as his bag of tricks for a brilliant use of repetition (which amuses Alan Dawson), one of his celebrated duets with himself, blues references, and the all-but-inevitable quote from “Give a Little Whistle.” Brubeck lyrically builds his solo with single-note lines, then generates a head of steam that barely subsides before the tune ends. Along the way, he draws Dawson and Jack Six into a concentrated bit of the metric play that had a good deal to do with making him famous. Watching this band have a good time, it’s hard not to have a good time.