Sound

Introduced in Homestuck, the [S] command prefix indicates when a page has sound. While not conventional for a webcomic, this nonetheless means that epic moments are accompanied by equally epic music.

Soundtrack
There are many different arrangements in Homestuck, used for Haunting Solos, Background Music, and Casual Listening. As such Andrew Hussie has set up a Sound Credits Page. The listing by mixes is as follows.

Showtime
By Malcolm Brown
 * "Showtime"
 * "Showtime" (Partial piano refrain version) Arranged by Kevin Regamey
 * "Showtime" (Full piano refrain version) Arranged by Kevin Regamey
 * "Showtime" ("16 bit" version) Arranged by George Buzinkai
 * "Showtime - Sleep/dream sequence" Arranged by Bill Bolin
 * "Showtime Remix" Remixed by Gabe Nezovic

Harlequin
By Mark Hadley
 * "Harlequin"
 * "Harlequin" (partial)
 * "Harlequin" (Rock Version) Arranged by Michael Guy Bowman Guitar by Joseph Aylsworth
 * "Nannaquin"

Sburban
By Michael Guy Bowman
 * "Sburban Jungle"
 * "Sburban Countdown" Arranged by Mark Hadley
 * "Sburban Reversal" (partial) Arranged by Mark Hadley