Kyle Bruckmann of rivers New Focus Recordings   Oboist, composer, and electronic musician Kyle Bruckmann is a dedicated advocate for contemporary concert music. One of the founding members of Splinter Reeds, he currently plays in a number of ensembles in the San Francisco Bay area, including sfSound, San Francisco Contemporary Players, and the Stockton Symphony. Bruckann teaches oboe and contemporary music at University of the Pacific.    On his latest recording, Bruckmann programs a number of pieces that incorporate wildly challenging extended techniques and, in some, electronics. Bruckmann’s own Proximity, Affect features the latter, as well as deconstructed instruments.