======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '275'
                                          'artist'  'Motörhead'
                                     'text_people'  ''
                                         'release'  'Stone Deaf Forever!'
                                           'title'  'Broken'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']"
                                     'discogstags'  "['rock', 'heavy metal', 'hard rock', 'punk', 'rock & roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '16'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-gr-hard'
                                             'bpm'  '146'
                                             'key'  '2B'
                                        'acoustid'  '0c1e5bcf-8481-4d29-83f2-ae57b66a5d56'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Stone Deaf Forever!'
'TBPM' (BPM (beats per minute))                     '146'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-hard'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Broken'
'TKEY' (Initial key)                                '2B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Motörhead'
'TPE2' (Band/orchestra/accompaniment)               'Motörhead'
'TPOS' (Part of a set)                              '4/5'
'TPUB' (Publisher)                                  'Castle Music'
'TRCK' (Track number/Position in set)               '2/16'
'TSO2'                                              'Motörhead'
'TSOP' (Performer sort order)                       'Motörhead'
'TSRC' (ISRC (international standard recording code))  'DEA459602700'
'TSST' (Set subtitle)                               '1996-2002'
'TXXX:Acoustid Id'                                  '0c1e5bcf-8481-4d29-83f2-ae57b66a5d56'
'TXXX:Artists'                                      'Motörhead'
'TXXX:BARCODE'                                      '5050159174799'
'TXXX:CATALOGNUMBER'                                'CMXBX747'
'TXXX:MusicBrainz Album Artist Id'                  '57961a97-3796-4bf7-9f02-a985a8979ae9'
'TXXX:MusicBrainz Album Id'                         '930e2c0f-bef2-4c7e-a459-8b44e93c8413'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '57961a97-3796-4bf7-9f02-a985a8979ae9'
'TXXX:MusicBrainz Release Group Id'                 '23922049-8179-3f3d-95c6-f999023813f3'
'TXXX:MusicBrainz Release Track Id'                 'ea9a3e12-fe9c-4533-9837-e415ad474790'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'heavy metal', 'hard rock', 'punk', 'rock & roll']
'TXXX:lastfmtags'                                   ['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.65 dB'
'TXXX:replaygain_track_peak'                        '0.484215'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'680759d3-8b42-4ee8-814c-77a8074c84f4')

========================== row from database ==========================
                                              'id'  934457
                                            'path'  /data/Music/Bulk/00dwimp/Motorhead/Motorhead - CD4  1996-2002/02 - Broken.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  275
                                           'genre'  rock-gr-hard
                                        'filesize'  8877598
                                           'mtime'  1636902816
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp Motorhead Motorhead CD4 1996 2002 02 rock gr hard
                                      'tag_artist'  Motörhead
                                     'tag_release'  Stone Deaf Forever!
                                       'tag_title'  Broken
                                             'bpm'  146.0
                                    'search_title'  'broken':1
                                   'search_artist'  'motorhead':1,2
                                  'search_release'  'deaf':2 'forever':3 'stone':1
                                     'search_rest'  '00dwimp':1 '1996':4 '2002':5 'cd4':3 'gr':7 'hard':8 'motorhead':2 'rock':6
                                    'search_combo'  '00dwimp':7 '1996':10 '2002':11 'broken':1A 'cd4':9 'deaf':5C 'forever':6C 'gr':13 'hard':14 'motorhead':2B,3B,8 'rock':12 'stone':4C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'heavy metal', 'hard rock', 'punk', 'rock & roll']

============================== file details ==============================
                                           'mtime'  1636902815.6990802  (2021-11-14 16:13:35)
                             'size'  8877598