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
OrchardWindhand6:37Soma2013C Standardmute1970-01-01
Ordinary ManEels3:18Hombre Lobo : 12 Songs of Desire2009E Standardmute1970-01-01
Ordinary PainStevie Wonder6:27Songs in the Key of Life1976Eb Standardmute1970-01-01
Organ Short #600 Million in C MinorLuck Ganriki1:44Dear Golden Witch -Umineko Sounds by Luck Ganriki- Umineko No Nakukoroni / Ogonmusou2011E Standardmute1970-01-01
Origin Of TerrorKrisiun4:08Southern Storm2008C# Standardmute1970-01-01
Ornstein & Smough ThemeUtamaru3:20Dark Souls (OST)2014E Standardmute1970-01-01
OrphanSilent Planet3:51Everything Was Sound2016Bb Drop Abmute1970-01-01
OtherworldNobuo Uematsu3:18"Final Fantasy X" Original Soundtrack, Disk 12001Eb Drop Dbmute1970-01-01
Oui! Ai KotobaYonezawa Madoka4:02K-ON! Character Image Song Series - Hirasawa Ui2009E Standardmute1970-01-01
Our LoveGary Clark Jr.7:28The Story Of Sonny Boy Slim2015E Standardmute1970-01-01
Our Rage Won't DieMeshuggah4:44The Violent Sleep of Reason2016Custom Tuningmute1970-01-01
OuroborosNovelists4:37Souvenirs2015D Drop Cmute1970-01-01
Out Of L.A.The Dollyrots3:16Because I'm Awesome2007E Standardmute1970-01-01
Out Of RangeRed Hot Chili Peppers4:04The Zephyr Song2002E Standardmute1970-01-01
Out Of ReachGabrielleBass2 3:19Bridget Jones's Diary (Soundtrack)2001Custom Tuningmute1970-01-01