Database Stats

These statistics represent provide aggregate data on various things in the MusicBrainz database. They were last refreshed 2007-05-18 03:05:01 UTC.

See also our Web Stats pages, and our system monitoring pages.

Basic Metadata Statistics
Artists 306369
Releases 483324
Disc IDs 191935
Tracks 5724514
Labels 5309
Links 474998
PUIDs 2111970
TRMs 13164156
Editors 313055
Albums
Releases 483324  
  by various artists 68042 14.1%
  by a single artist 415282 85.9%
Disc Identifiers
Disc IDs 191935
Releases 483324
Releases with no disc ID 322868 66.8%
Releases with at least one disc ID 160456 33.2%
  with 1 disc ID 140944 87.8%
  with 2 disc IDs 13571 8.5%
  with 3 disc IDs 3291 2.1%
  with 4 disc IDs 1273 0.8%
  with 5 disc IDs 610 0.4%
  with 6 disc IDs 307 0.2%
  with 7 disc IDs 186 0.1%
  with 8 disc IDs 101 0.1%
  with 9 disc IDs 60 0.0%
  with 10 or more disc IDs 113 0.1%
Track Identifiers
Tracks 5724514
Tracks with no PUIDs 4011925 70.1%
Tracks with at least one PUID 1712589 29.9%
  with 1 PUID 1452207 84.8%
  with 2 PUIDs 185215 10.8%
  with 3 PUIDs 44910 2.6%
  with 4 PUIDs 15883 0.9%
  with 5 PUIDs 6723 0.4%
  with 6 PUIDs 3326 0.2%
  with 7 PUIDs 1754 0.1%
  with 8 PUIDs 1012 0.1%
  with 9 PUIDs 571 0.0%
  with 10 or more PUIDs 988 0.1%
PUID Collisions
PUIDs (on tracks) 2111970
PUIDs (distinct IDs) 1718876
PUIDs which identify exactly one track 1483487 86.3%
  which resolve to 2 tracks 162291 9.4%
  which resolve to 3 tracks 40189 2.3%
  which resolve to 4 tracks 15147 0.9%
  which resolve to 5 tracks 6931 0.4%
  which resolve to 6 tracks 3853 0.2%
  which resolve to 7 tracks 2286 0.1%
  which resolve to 8 tracks 1471 0.1%
  which resolve to 9 tracks 1005 0.1%
  which resolve to 10 or more tracks 2216 0.1%
Track Identifiers
Tracks 5724514  
Tracks with no TRMs 2445718 42.7%
Tracks with at least one TRM 3278796 57.3%
  with 1 TRM 1203286 36.7%
  with 2 TRMs 621618 19.0%
  with 3 TRMs 377669 11.5%
  with 4 TRMs 250585 7.6%
  with 5 TRMs 176896 5.4%
  with 6 TRMs 129087 3.9%
  with 7 TRMs 97285 3.0%
  with 8 TRMs 75290 2.3%
  with 9 TRMs 58851 1.8%
  with 10 or more TRMs 288229 8.8%
TRM Collisions
TRMs (on tracks) 13164156  
TRMs (distinct IDs) 8768295  
TRM IDs which identify exactly one track 7673821 87.5%
  which resolve to 2 tracks 495258 5.6%
  which resolve to 3 tracks 147057 1.7%
  which resolve to 4 tracks 91095 1.0%
  which resolve to 5 tracks 68009 0.8%
  which resolve to 6 tracks 53400 0.6%
  which resolve to 7 tracks 42540 0.5%
  which resolve to 8 tracks 34628 0.4%
  which resolve to 9 tracks 28202 0.3%
  which resolve to 10 or more tracks 134285 1.5%
Moderators
Editors 313055  
  who edited last week 2817 0.9%
  who voted last week 221 0.1%
  active last week 2889 0.9%
Moderations
Edits 4058247  
  Open 14799 0.4%
  Applied 3861289 95.1%
  Rejected 95994 2.4%
  Failed (failed dependency) 11189 0.3%
  Failed (failed prerequisite) 18889 0.5%
  Failed (internal error) 3061 0.1%
  Delete pending 0 0.0%
  Deleted 53006 1.3%
Votes
Votes 4970788  
  Yes 2275082 45.8%
  No 230428 4.6%
  Abstain 2465278 49.6%

(These next statistics are calculated separately from the others on this page, so don't expect the numbers to match up).

Open Moderations
Open Edits 14803  
  Add Relationship 6341 42.8%
  Add Release 2710 18.3%
  Edit Track Name 1904 12.9%
  Add Release Events 993 6.7%
  Add Label 578 3.9%
  Edit Release Name 367 2.5%
  Change Track Artist 346 2.3%
  Edit Release Events 192 1.3%
  Edit Artist 165 1.1%
  Edit Release Attributes 139 0.9%
  Merge Artists 112 0.8%
  Add Artist Alias 111 0.7%
  Edit Track Time 108 0.7%
  Move Release 98 0.7%
  Add Track 97 0.7%
  Edit Track Number 79 0.5%
  Remove Relationship 57 0.4%
  Edit Release Language 54 0.4%
  Edit Relationship 46 0.3%
  Merge Releases 41 0.3%
  Edit Label 32 0.2%
  Remove Release Events 28 0.2%
  Edit URL 26 0.2%
  Remove TRM ID 23 0.2%
  Remove Track 22 0.1%
  Set Release Durations 20 0.1%
  Remove PUID 19 0.1%
  Remove Disc ID 18 0.1%
  Merge Releases (Various Artists) 14 0.1%
  Remove Release 13 0.1%
  Remove Artist 11 0.1%
  Add Label Alias 11 0.1%
  Convert Release to Multiple Artists 6 0.0%
  Merge Labels 6 0.0%
  Remove Artist Alias 5 0.0%
  Change Release Quality 5 0.0%
  Convert Release to Single Artist 3 0.0%
  Move Disc ID 1 0.0%
  Change Artist Quality 1 0.0%
  Remove Label 1 0.0%

Here are some graphs over a few of the above statistics over time. Each one is presented as a simple count, followed by a "delta" plot showing how the weekly change rate.

count.artist
count.artist
count.album
count.album
count.track
count.track
count.label
count.label
count.puid
count.puid
count.trm
count.trm
count.discid
count.discid
count.ar.links
count.ar.links
count.moderator
count.moderator
count.moderation
count.moderation
count.vote
count.vote
count.moderation.open
 
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