======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '228'
                                          'artist'  'Type O Negative'
                                     'text_people'  ''
                                         'release'  'Gothic Club Classics, Volume 2'
                                           'title'  "My Girlfriend's Girlfriend"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-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-4']")
                                      'lastfmtags'  "['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-goth or gothrock-gothrock'
                                             'bpm'  '113.964'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Gothic Club Classics, Volume 2'
'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 'eid-goth or gothrock-gothrock'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "My Girlfriend's Girlfriend"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Type O Negative'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['metal', 'gothic', 'doom metal', 'gothic rock', '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'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.425145'

========================== row from database ==========================
                                              'id'  1511601
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Gothic_Club_Classics_Volume_2/CD_2/04_-_Type_O_Negative_-_My_Girlfriend_s_Girlfriend.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  228
                                           'genre'  eid-goth or gothrock-gothrock
                                        'filesize'  5480594
                                           'mtime'  1620300645
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth Gothic_Club_Classics_Volume_2 CD_2 04_ _Type_O_Negative_ _My_Girlfriend_s_Girlfriend eid goth or gothrock gothrock
                                      'tag_artist'  Type O Negative
                                     'tag_release'  Gothic Club Classics, Volume 2
                                       'tag_title'  My Girlfriend's Girlfriend
                                             'bpm'  113.964
                                    'search_title'  'girlfriend':2,5 'girlfriends':4 'my':1 's':3
                                   'search_artist'  'negative':3 'o':2 'type':1
                                  'search_release'  '2':6 'classics':3,4 'club':2 'gothic':1 'volume':5
                                     'search_rest'  '00dwimp':1 '00ebm':2 '04':13 '2':10,12 'cd':11 'classics':8 'club':7 'darkwave':4 'eid':21 'girlfriend':18,20 'goth':5 'gothic':6 'gothrock':23 'industrial':3 'my':17 'negative':16 'o':15 'or':22 's':19 'type':14 'volume':9
                                    'search_combo'  '00dwimp':15 '00ebm':16 '04':27 '2':14C,24,26 'cd':25 'classics':11C,12C,22 'club':10C,21 'darkwave':18 'eid':35 'girlfriend':2A,5A,32,34 'girlfriends':4A 'goth':19 'gothic':9C,20 'gothrock':37 'industrial':17 'my':1A,31 'negative':8B,30 'o':7B,29 'or':36 's':3A,33 'type':6B,28 'volume':13C,23
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620300644.8494413  (2021-05-06 13:30:44)
                             'size'  5480594