Now here is a fine example of sensitive instrumental interplay. After the ominously low rumble of bass serves as an introduction, the structure of “Lua e Sol” is set with a series of guitar chords and arpeggios that are used as starting point for Mark Weinstein’s flute excursions. The contrast between the rolling nature of the guitar figures and the angular approach taken by Weinstein (recalling Anthony Braxton in spots) adds depth to the composition. As things progress, both the guitar and flute expand their sonic reach, with the great percussionist Cyro Baptista adding many exclamation points along the way.