He is still at it, and his band includes the amazingly fluid guitarist Mark Whitfield, one of the better musicians rooted in the classic Wes Montgomery style.

Mark Whitfield and his Son Mark Jr.

"It's experimenting, that's all," Mr. Harrison says of his neighborhood sessions with musicians including Mark Whitfield, a guitarist, and Sam Newsom, a tenor saxophonist.

Mark Whitfield, 23, one of the best young guitarists on the scene today, has even done what would have been the unthinkable five years ago, and jettisoned his amplifier altogether.

This week's engagement presents his trio with walk-on guests including the saxophonist Gary Bartz, the guitarist Mark Whitfield and the singer Vanessa Rubin.

Mark Whitfield, Thursday; and Cedar Walton, Aug. 5.

In 2002 he was invited by his friend and mentor Mark Whitfield to New York City to continue to further expand his career.

Norman Brown, of course, and I do like Mark Whitfield, and the guy who played with Diana Krall, Russell Malone.

Since 1999 Marchione has collaborated with Mark Whitfield, on five different archtop guitars.

The song was also covered by Mark Whitfield from his 2009 album Songs of Wonder, but the song is mainly instrumental.