Shirley Horn's piano doesn't accompany Thielemans so much as answer him, phrase by phrase.
What makes this record is Shirley Horn. She's the reason it matters. Thielemans spent decades proving the harmonica belonged in jazz, but here Horn reminds us that the best jazz is about listening — about leaving space, resisting the urge to fill every silence. Her piano is spare and deliberate. She doesn't lay down a groove and let Thielemans solo over it. Instead she and Thielemans trade thoughts like old friends who don't need to talk much. On ballads especially, Horn plays single lines, shifts chords at odd moments, lets her left hand breathe. It's restrained work, the kind that's easy to miss if you're not paying attention.
Thielemans' harmonica and guitar work well enough on their own — he'd proved that decades before this record. But paired with Horn, they sound conversational in a way his earlier recordings sometimes didn't. The rhythm section of Charles Ables on bass and Steve Williams on drums stays light, almost invisible. They're there to keep time, not to push. Everything yields to the dialogue between horn and harmonica.
This is late-career Thielemans, recorded when he was in his seventies. Not a comeback album, not a statement, just a good one. The songs are standards and a few originals, nothing that demands rewriting. What matters is that Horn knew when to play and when to let space exist. That's rarer than it sounds.