5:48 4 Strings - Mainline (Grande Piano Remix) [Extended Mix] 4:23 4 Strings - Mainline (Grande Piano Remix) 4:55 4 Strings - Mainline (Original Mix) 8:16 4 Strings - Mainline (Original Mix) (2006) 8:25 4 Strings - Mainline 6:34 Airscape - Sosei (F&W Remix) 8:17 4 Strings - Mainline [HD] 4:55 4 Strings - Mainline Original Mix 8:16 4 Strings - Mainline 8:17 4 Strings - Mainline (Original Mix) 6:27 4 Strings - Mainline ( 4 Turntables Remix ) 8:25 4 Strings - Mainline (2006) 8:17 4 Strings - Mainline 5:42 Classic : 4 Strings Mega Mix (Official Music Video) 4:55 4 Strings - Mainline (Original Mix) 3:12 4 Strings - Take Me Away