======================== unified (from filesystem) ========================
                                         'bitrate'  '213.928'
                                        'duration'  '112'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  'Absolutely Free'
                                           'title'  'The Duke Regains His Chops'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '127.605'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Absolutely Free'
'TBPM' (BPM (beats per minute))                     '127.605'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'The Duke Regains His Chops'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.97 dB'
'TXXX:replaygain_track_peak'                        '0.704061'

========================== row from database ==========================
                                              'id'  475761
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Frank Zappa/1967 - Absolutely Free/04 - The Duke Regains His Chops.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  112
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  3023903
                                           'mtime'  1636400792
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1967 04 ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Absolutely Free
                                       'tag_title'  The Duke Regains His Chops
                                             'bpm'  127.605
                                    'search_title'  'chops':5 'duke':2 'his':4 'regains':3 'the':1
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'absolutely':1 'free':2
                                     'search_rest'  '00singer':1 '1967':4 'eos':3 'experimental':6 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':10 '1967':13 'absolutely':8C 'chops':5A 'duke':2A 'eos':12 'experimental':15 'frank':6B 'free':9C 'his':4A 'ifs':14 'regains':3A 'songwriter':11 'the':1A 'zappa':7B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400792.306669  (2021-11-08 20:46:32)
                             'size'  3023903