Friday night Jazz at the High is quite fun, though not necessarily for the concert. They offer a nice set up but the acoustics are not up to par.
However: the music is in the internal courtyard, beyond the first bridge. The floors above are open to an internal open staircase/ramp. In other words: the music carries to all the floors above.
This was a pretty good setting in which to discover the European art collection at the High. I went a little loopy at two pieces by Niccolò di Segna, this here by Giovanni Francesco da Rimini, this German St. Andrew and several more. The impressionist and modern collection was also a noteworthy, as was the Tiepolo, below