West London-based artist Hope Tala’s “Leave It On The Dancefloor” is a shimmery, synth-driven track. The buoyant tune—co-written with Mozella (aka Maureen Anne McDonald) and produced by Greg Kurstin—is an optimistic ode to the power of dancing your woes away. “I wrote this song imagining what I would want someone to tell me while I was going through a hard time. The chorus lyric encapsulates it …