Yeah, it's not as good as the other five Thin Man films. So what? It's worth a 7 just to see Powell & Loy banter one more time. Remember, even Marilyn Monroe couldn't save "Love Happy", the Marx Brothers' last effort.
BTW: The jazz was dated even for the time. The cutting edge in 1947 was bebop, and even bebop was fairly mature by then. The after-hours jam sessions would be mixed race efforts with an edge toward the black musicians, not a bunch of white guys playing small-group variations of 1940's big band crap. The white musicians went to the sessions to learn bebop from their black compatriots and to get away from the junk they had to play on the bandstand. Even the instrumentation was dated. The clarinet had already died as a principal instrument for younger musicians. All in all, it's about as authentic as the Rock and Roll in an Annette Funicello movie.
BTW: The jazz was dated even for the time. The cutting edge in 1947 was bebop, and even bebop was fairly mature by then. The after-hours jam sessions would be mixed race efforts with an edge toward the black musicians, not a bunch of white guys playing small-group variations of 1940's big band crap. The white musicians went to the sessions to learn bebop from their black compatriots and to get away from the junk they had to play on the bandstand. Even the instrumentation was dated. The clarinet had already died as a principal instrument for younger musicians. All in all, it's about as authentic as the Rock and Roll in an Annette Funicello movie.