======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '342'
                                          'artist'  'moonspell'
                                     'text_people'  ''
                                         'release'  'anno satanae (demo)'
                                           'title'  'ancient winter goddess'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['black metal', 'metal', 'dark metal', 'doom metal', 'gothic metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '117.671'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'anno satanae (demo)'
'TBPM' (BPM (beats per minute))                     '117.671'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'ancient winter goddess'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'moonspell'
'TRCK' (Track number/Position in set)               '2'
'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:lastfmtags'                                   ['black metal', 'metal', 'dark metal', 'doom metal', 'gothic metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+11.88 dB'
'TXXX:replaygain_track_peak'                        '0.076720'

========================== row from database ==========================
                                              'id'  1397601
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Moonspell/1993 - Anno satanae (demo)/02 - ancient winter goddess.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  342
                                           'genre'  eid-metal
                                        'filesize'  5474882
                                           'mtime'  1620301298
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Moonspell 1993 Anno 02 eid metal
                                      'tag_artist'  moonspell
                                     'tag_release'  anno satanae (demo)
                                       'tag_title'  ancient winter goddess
                                             'bpm'  117.671
                                    'search_title'  'ancient':1 'goddess':3 'winter':2
                                   'search_artist'  'moonspell':1
                                  'search_release'  'anno':1 'demo':3,4 'satanae':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '1993':4 'anno':5 'eid':6 'metal':7 'moonspell':3
                                    'search_combo'  '00dwimp':9 '00metal':10 '1993':12 'ancient':1A 'anno':5C,13 'demo':7C,8C 'eid':14 'goddess':3A 'metal':15 'moonspell':4B,11 'satanae':6C 'winter':2A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['black metal', 'metal', 'dark metal', 'doom metal', 'gothic metal']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301297.968134  (2021-05-06 13:41:37)
                             'size'  5474882