======================== unified (from filesystem) ========================
                                         'bitrate'  '209.853'
                                        'duration'  '281'
                                          'artist'  'Covenant'
                                     'text_people'  ''
                                         'release'  'Europa'
                                           'title'  '2d'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave-futurepop'
                                             'bpm'  '114.934'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Europa'
'TBPM' (BPM (beats per minute))                     '114.934'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave-futurepop'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         '2d'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Covenant'
'TRCK' (Track number/Position in set)               '3/9'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.528509'

========================== row from database ==========================
                                              'id'  1301000
                                            'path'  /data/Music/Bulk/00poprockelectronic/Covenant/Europa/Covenant - 2d.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  281
                                           'genre'  eid-ebm or industrial or darkwave-futurepop
                                        'filesize'  7401130
                                           'mtime'  1620296717
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic eid ebm or industrial or darkwave futurepop
                                      'tag_artist'  Covenant
                                     'tag_release'  Europa
                                       'tag_title'  2d
                                             'bpm'  114.934
                                    'search_title'  '2d':1
                                   'search_artist'  'covenant':1
                                  'search_release'  'europa':1
                                     'search_rest'  '00poprockelectronic':1 'darkwave':6 'ebm':3 'eid':2 'futurepop':7 'industrial':5 'or':4
                                    'search_combo'  '00poprockelectronic':4 '2d':1A 'covenant':2B 'darkwave':9 'ebm':6 'eid':5 'europa':3C 'futurepop':10 'industrial':8 'or':7
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296716.5895061  (2021-05-06 12:25:16)
                             'size'  7401130