With the large Alameda Central largely closed off for renovations, even hanging out in the park--just three blocks from my hotel--wasn't a viable option.
Imagine my delight, then, when I discovered that the Museo Mural Diego Rivera waived its 19 peso entrance fee in order to welcome a California based musical trio for a free afternoon concert.
http://www.thelandtrio.com/land_trio/Home.html
With a young Mexican composer/guitarist fronting two Iranian Americans on percussion (tabla) and kamancheh, a violin-type instrument played upright and verticle, the Land Trio performed its last concert of their current tour in front of the huge Rivera mural Dream of a Sunday Afternoon in Alameda Park before an attentive audience of around 100 people.
These three excellent young performers played a 75 minute concert with enthusiasm and sensitivity, occasionally inviting another Mexican guest artist who played Mexican guitar.
I paid five pesos (40 cents) for a photo permit in order to practice shooting indoors without flash, but could only manage to get some very mixed results.
I produced slightly better quality by recording six or seven minutes of audio/video of the musicians.
Here is Frommer's take on the Museo Mural Diego Rivera: