On EMI there is the pulsing, throbbing, exhilarating music of Osvaldo Golijov: Last Roundsfor nine strings, which was played here last year by the Philharmonic in an expansion for string orchestra; Lullaby and Doina, heard at a Green Umbrella; Yiddishbuk, at Ojai; and The Dreams and Prayers of Isaac the Blind for klezmer clarinet and strings, which the Kronos plays all over the place. It's all irresistible stuff; the intensity is overwhelming as this composer of many backgrounds locates a vector of his Latino and Yiddish heritage (with maybe a shot of vodka to help the fire along). We've heard excellent performances around here, but there is something almost superhuman in the energy these guys — the St. Lawrence String Quartet, with the Ying Quartet and clarinetist Todd Palmer — bring to their work that adds this one more disc to the "essential" pile. Besides, you have to buy discs like these, to tell the folks at EMI — and Sony, and RCA, and whoever else is left — that there is still a market for important recordings, and to tell the Opera Babes to crawl back into the woodwork.