The L.A. Phil's nonstop new music marathon, 'Noon to Midnight'

For the first Green Umbrella program of the season, Saturday night at Walt Disney Concert Hall, John Adams conducted the Los Angeles Philharmonic New Music Group in five premieres -- four of them commissioned by the orchestra, including one by 17-year-old clarinetist Andrew Moses and another by Ingram Marshall, 74 and in too poor of health to have attended, whose "Flow" is special enough that it deserves to bring lasting glory to the orchestra. But because I didn't want Marshall's piece to get lost in a big evening, I've buried the lead: The New Music Group was followed by a late-night appearance of wild Up, with Christopher Rountree conducting his increasingly impressive young ensemble in three more premieres. One was his own dazzling violin concert featuring Jennifer Koh as soloist, yet another L.A. Phil commission. Exiting the Grand Avenue staircase close to midnight, we were given bells for audience participation in still another L.A. Phil-commissioned world premiere, this by the collective Lucky Dragons. Even with all that, I've buried the lead, again.