4:55 4 Strings - Mainline (Original Mix) 8:16 4 Strings - Mainline (Original Mix) (2006) 8:25 4 Strings - Mainline 8:16 4 Strings - Mainline 11:40 4 Strings - Mainline (Original Mix) 5:48 4 Strings - Mainline (Grande Piano Remix) [Extended Mix] 8:17 4 Strings - Mainline (Original Mix 2006) Classic Trance 2:21 UPLIFTING TRANCE: 4 Strings - Mainline (Steve Allen Remix) [Amsterdam Trance] 8:16 4 Strings – Mainline (Original) 8:19 4 Strings – Mainline (Original) 8:01 4 Strings - Mainline 4:55 4 Strings - Mainline Original Mix 5:04 4 Strings - Mainline (Steve Allen Extended Remix) [AMSTERDAM TRANCE RECORDS] 5:04 4 Strings - Mainline (Steve Allen Remix) [Amsterdam Trance] Extended 8:25 4 Strings - Mainline ( Club mix )