ShredDB is an experimental .shred library, I removed the audio so it's pretty useless. You can find the source .psarc files here.

Song Artist Play Shred Length Album Year Tuning Uploader Updated Delete
21 LettersDelta Sleep5:23Twin Galaxies2015E Standardmute1970-01-01
21 questionsWaterparks3:50Double Dare2016Eb Standardmute1970-01-01
2112 Overture / The Temples of SyrinxRush6:48The Spirit of Radio: Greatest Hits 197419871976E Standardmute1970-01-01
213Slayer4:56Divine Intervention1994Eb Standardmute1970-01-01
214Rivermaya4:33Rivermaya1994E Standardmute1970-01-01
21:13Coheed and Cambria9:49In Keeping Secrets of Silent Earth: 32003Drop Dmute1970-01-01
21st Century BitchHoly Wars2:54Eat It Up Spit It Out2022B Drop Amute1970-01-01
21st Century BreakdownGreen Day4:4321st Century Breakdown2009Eb Standardmute1970-01-01
21st Century Digital BoyBad Religion2:52Against The Grain1990E Standardmute1970-01-01
21st Century GentlemanRoyal Republic3:14We Are The Royal2010E Standardmute1970-01-01
21st Century Schizoid Man/MirrorsKing Crimson7:21In the Court of the Crimson King1969E Standardmute1970-01-01
21stCenturySchizoidManKing Crimson7:03In The Court Of The Crimson King1969E Standardmute1970-01-01
22 Acacia AvenueIron Maiden6:39The Number of the Beast1982E Standardmute1970-01-01
22 FacesPeriphery3:53Juggernaut: Alpha2015E Standardmute1970-01-01
22 TeileCallejon2:45Willkommen Im Beerdigungscafé2006E Standardmute1970-01-01