The Isley Brothers recorded “That Lady” twice. Songwriters Ronald, O’Kelly, and Rudolph Isley, the original family trio, released the first version in 1964.
Besides the sweet vocals, the prominent features of the song are the insistent cowbell (!), and the supporting horn riff towards the end.
But it was the Isleys’ 1973 version that made the song famous (Billboard #6 that year). By then, younger brother Ernie Isley had joined the group, and it’s his fuzzed-out guitar that’s the hook in that version. For that release, the lyrics were embellished, and the superior recording quality reflects the improved technology of the day. Neither of the Isleys’ versions featured a key change, however!
Donald Fagen (of Steely Dan), Michael McDonald (of the Doobie Brothers), and Boz Scaggs toured as The Dukes of September from 2010 to 2012, playing hits from their own bands and some of their own favorites, like the song here. Guitarist Jon Herington, who had recorded and toured with Steely Dan, manages to capture the flavor of Ernie Isley’s solo in this performance at Lincoln Center in 2012.
In the Dukes’ version, there’s a half-step modulation at 2:36 — although this shift seems bigger due to an interruption of the groove, some unexpected kicks, and flourishes from the horn section.
