======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '302'
                                          'artist'  'Violent Femmes'
                                     'text_people'  ''
                                         'release'  'Add It Up (1981-1993)'
                                           'title'  'Country Death Song'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'indie', 'alternative', 'alternative rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '102.644'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Add It Up (1981-1993)'
'TBPM' (BPM (beats per minute))                     '102.644'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Country Death Song'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Violent Femmes'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['80s', 'indie', 'alternative', 'alternative rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.96 dB'
'TXXX:replaygain_track_peak'                        '0.592696'

========================== row from database ==========================
                                              'id'  1256147
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Violent Femmes/Add It Up/07 country death song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  302
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  7267161
                                           'mtime'  1638554839
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 country death song ifs songwriter indie rock
                                      'tag_artist'  Violent Femmes
                                     'tag_release'  Add It Up (1981-1993)
                                       'tag_title'  Country Death Song
                                             'bpm'  102.644
                                    'search_title'  'country':1 'death':2 'song':3
                                   'search_artist'  'femmes':2 'violent':1
                                  'search_release'  '1981':4 '19811993':6 '1993':5 'add':1 'it':2 'up':3
                                     'search_rest'  '00singer':1 'country':4 'death':5 'eos':3 'ifs':7 'indie':8 'rock':9 'song':6 'songwriter':2
                                    'search_combo'  '00singer':12 '1981':9C '19811993':11C '1993':10C 'add':6C 'country':1A,15 'death':2A,16 'eos':14 'femmes':5B 'ifs':18 'indie':19 'it':7C 'rock':20 'song':3A,17 'songwriter':13 'up':8C 'violent':4B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'indie', 'alternative', 'alternative rock', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1638554838.7020762  (2021-12-03 19:07:18)
                             'size'  7267161