Bobby Previte is proving himself jazz drummer-bandleaders with fresh ideas. On previous albums, Previte has shown a talent for creating evocative, almost picturesque music; on his new record, Weather Clear, Track Fast, he extends this approach while opening things up for freer improvisation by such vital players as trombonist Robin Eubanks and pianist Anthony Davis. These musicians — whether dancing manically on the title cut or slowing from intense flailing to a terse hush on ”Weather Cloudy, Track Slow” — make the most of Previte’s compositions. A