If for motivation it's definitely Rise and Shine. It's not a song as such but very inspiring. Plus two Russian songs.
Now, to be honest, have you ever ran in a very low mood that you were close to shed a tear?
Upcoming races: Winterrun 10k; Coastal Trail Series (Sussex); London 10 mile.
My PBs: 5k (parkrun results) - 25:25 (February'16); 10k - 50:47 (Jan'16); 1 mile - 07:27 (Jun'15); HM - 02:04:45 (Sep'16); Marathon - 04:51:00 (Sep'16)
Goals: One mile sub 7:20; 5k sub 25; 10k sub 50, HM - sub 2 hrs, Marathon - sub 4h 30mins