Time signatures and scales with Zara McFarlane and Ollie Howell

Singer and composer Zara McFarlane and jazz drummer and composer Ollie Howell take us on a musical adventure with the help of composer and musician Nitin Sawhney, as they join Cerys Matthews and Jeffrey Boakye to add the next five tracks. Tune in for a scat singing lesson and a 50,000-year history lesson in the origin of musical scales. Presenters Cerys Matthews and Jeffrey Boakye

Producer Jerome Weatherald The five tracks in this week's playlist: It Don't Mean a Thing if it Ain't Got That Swing by Ella Fitzgerald and Duke Ellington

Hey Ya! By Outkast

Lost It To Trying by Son Lux

Songs of Fun and Nonsense by Julie Andrews, Moondog and Martyn Green

Do-Re-Mi by Julie Andrews, from The Sound of Music by Rodgers and Hammerstein Other music in this episode: Fisherman by Zara McFarlane

Basin Street Blues by Louis Armstrong and His Hot Five

Purple Haze by The Jimi Hendrix Experience