======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '267'
                                          'artist'  'Silentium'
                                     'text_people'  ''
                                         'release'  'Altum'
                                           'title'  '...Repent...'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metal', 'female fronted metal', 'doom metal', 'finnish', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '9'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '124.468'
                                             'key'  '8A'
                                        'acoustid'  'f7435052-05bf-45ab-bf57-350ee7f6caba'
rest: ''

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

'COMM::eng'                                         '©Low2002'
'COMM:ID3v1 Comment:XXX'                            ')Low2002'
'COMM:MusicMatch_Preference:\x00\x00\x00'           'None'
'TALB' (Album/Movie/Show title)                     'Altum'
'TBPM' (BPM (beats per minute))                     '124.468'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 '©Low2002'
'TIT2' (Title/songname/content description)         '...Repent...'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '267000'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Silentium'
'TPE2' (Band/orchestra/accompaniment)               'Silentium'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Spikefarm Records'
'TRCK' (Track number/Position in set)               '5/9'
'TSO2'                                              'Silentium'
'TSOP' (Performer sort order)                       'Silentium'
'TXXX:ASIN'                                         'B00005JT2Z'
'TXXX:Acoustid Id'                                  'f7435052-05bf-45ab-bf57-350ee7f6caba'
'TXXX:BARCODE'                                      '6417871141932'
'TXXX:CATALOGNUMBER'                                'NAULA 019'
'TXXX:MusicBrainz Album Artist Id'                  'c1dcd1a2-785e-4277-9816-c514cbcfa2c5'
'TXXX:MusicBrainz Album Id'                         '3979972b-9efc-4223-a28d-bbcfd80e5842'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c1dcd1a2-785e-4277-9816-c514cbcfa2c5'
'TXXX:Q-HAP'                                        '1'
'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'
'TXXX:lastfmtags'                                   ['metal', 'female fronted metal', 'doom metal', 'finnish', 'gothic metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.16 dB'
'TXXX:replaygain_track_peak'                        '0.371418'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9cdcfa85-4a35-4459-a168-3f15bc88c1a5')

========================== row from database ==========================
                                              'id'  1391290
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Silentium - Altum/Silentium - Altum - 05 - ...Repent.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  267
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  8570210
                                           'mtime'  1620310305
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 05 eid metal doom or gothic
                                      'tag_artist'  Silentium
                                     'tag_release'  Altum
                                       'tag_title'  ...Repent...
                                             'bpm'  124.468
                                    'search_title'  'repent':1,2
                                   'search_artist'  'silentium':1
                                  'search_release'  'altum':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'doom':5 'eid':3 'gothic':7 'metal':4 'or':6
                                    'search_combo'  '00dwimp':5 '00metal':6 'altum':4C 'doom':9 'eid':7 'gothic':11 'metal':8 'or':10 'repent':1A,2A 'silentium':3B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['metal', 'female fronted metal', 'doom metal', 'finnish', 'gothic metal']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310305.3853183  (2021-05-06 16:11:45)
                             'size'  8570210