Tonight she improvised frequently, playing jazzy harmonies and clever riffs, allowing the music to carry itself, the notes soaring and regrouping, then flying to risky altitudes.

The group's vocal arrangements are more elaborate than those of many instrumental bands; every so often, the voices join to transform basic major and minor chords into jazzy harmonies.

At Central Park Summerstage in July, his band had come up with a startling merger of West Africa and deep Brooklyn funk, ranging from glimmering patterns to jazzy harmonies to down-and-dirty electric guitar riffs.

No. 5, "Arc en Ciel," is gently impulsive, filled with elegant daubs of jazzy harmony.

The work is poignant and reverent, yet the music is run through with jazzy harmony and the melodic lines bent with blue notes.

Composed and produced by Prince's Paisley Park organization, the track combines a military beat with a staccato, hard-rock riff and jazzy harmonies - Prince's trademark - to eerie effect.

He was a teen-age prodigy in the 1960's, letting loose his serpentine vocals and jazzy harmonies even within the hit-factory routine of Motown Records.

Os Cariocas, from Rio de Janeiro, have been playing bossa novas and singing them in jazzy four-part harmony since the 1960's.

"So Little" begins with wryly jazzy harmonies, like those fitful moments in Kurt Weill.

Mr. Assad's suite is an intricately textured beauty with jazzy harmonies and mildly angular melodies.