Untitled 8 Rough Mix by J.K. Wiechert

I found some music which I think will suit perfectly, the track gives a feeling of urgency and worry that the main character was feeling as you lose your keys thanks to it being in the minor key. The heartbeat repeating sound so you empathise with the character as his heartbeats gets louder and louder and it repeats itself as that is the nature of a while loop. 

Although the loop itself is resolved at the end, the actual dilemma of losing his keys hasn't been resolved and I have had it suggested that I finish the music on a happy note but I don't think that having some sort of cadence or a happier tone would suit the film and the result.