======================== unified (from filesystem) ========================
                                         'bitrate'  '216.971'
                                        'duration'  '342'
                                          'artist'  'Skindive'
                                     'text_people'  ''
                                         'release'  'Skindive'
                                           'title'  'Space Age Lullaby'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['queer as folk', 'alternative', 'industrial', 'female vocalists', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '111.211'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Skindive'
'TBPM' (BPM (beats per minute))                     '111.211'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'Winamp 5.32'
'TIT2' (Title/songname/content description)         'Space Age Lullaby'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skindive'
'TPOS' (Part of a set)                              '1/1'
'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'                                   ['queer as folk', 'alternative', 'industrial', 'female vocalists', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.416703'

========================== row from database ==========================
                                              'id'  1391411
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Skindive/Skindive - Skindive/Skindive - 04 - Space Age Lullaby.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  342
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  9293696
                                           'mtime'  1620296057
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth 04 eid ebm or industrial or darkwave
                                      'tag_artist'  Skindive
                                     'tag_release'  Skindive
                                       'tag_title'  Space Age Lullaby
                                             'bpm'  111.211
                                    'search_title'  'age':2 'lullaby':3 'space':1
                                   'search_artist'  'skindive':1
                                  'search_release'  'skindive':1
                                     'search_rest'  '00dwimp':1 '00ebm':2 'darkwave':4 'ebm':7 'eid':6 'goth':5 'industrial':3 'or':8
                                    'search_combo'  '00dwimp':6 '00ebm':7 'age':2A 'darkwave':9 'ebm':12 'eid':11 'goth':10 'industrial':8 'lullaby':3A 'or':13 'skindive':4B,5C 'space':1A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['queer as folk', 'alternative', 'industrial', 'female vocalists', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620296056.903727  (2021-05-06 12:14:16)
                             'size'  9293696