Hello! here are some awesome tracks that have the feeling of some Clockworks levels!
Ironclaw Munitions factory: http://www.youtube.com/watch?v=p6OTbdgt_Ms&feature
Roarmulas Twins fight: http://www.youtube.com/watch?v=kpQ_OQAtgDQ&feature
Firestorm Citadel: http://www.youtube.com/watch?v=QQCZIb0fbt8
Vanduke fight: http://www.youtube.com/watch?v=PDlpaK4ScJw&feature
Graveyard: http://www.youtube.com/watch?v=ymv7GQR6jqc&feature
Ice stratum: http://www.youtube.com/watch?v=ZbbUv1hz6mE&feature
Clockwork Tunnels: http://www.youtube.com/watch?v=XXS3XZwPaEk&feature
Trap/danger room! http://www.youtube.com/watch?v=wtz1kmO70aM&feature
I'm still trying to link more songs that relate! You can help me by posting a link to the song (P.S. It doesn't have to be from a game!)
NOTE: I do not take credit for any of these songs. These songs just seem to fit the mood of some of the levels!
Fire themed levels: http://www.youtube.com/watch?v=rX3oTma4E1E
Ice themed levels: http://www.youtube.com/watch?v=B_smVtt6T6s