======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '138'
                                          'artist'  'The Mulcays'
                                     'text_people'  ''
                                         'release'  'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
                                           'title'  'Caravan'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '30'
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'loc-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '134.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
'TBPM' (BPM (beats per minute))                     '134.2'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'Caravan'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mulcays'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20/30'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.670211'

========================== row from database ==========================
                                              'id'  718427
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/v.a. - WFMU - Phonoanomalies - A Totally New Recording for Hi-Fi Bugs/20_-_The_Mulcays_-_Caravan.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  138
                                           'genre'  loc-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3331718
                                           'mtime'  1621629056
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm v.a. WFMU 20_ _The_Mulcays_ _Caravan loc unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  The Mulcays
                                     'tag_release'  Phonoanomalies: A Totally New Recording for Hi-Fi Bugs
                                       'tag_title'  Caravan
                                             'bpm'  134.2
                                    'search_title'  'caravan':1
                                   'search_artist'  'mulcays':2 'the':1
                                  'search_release'  'a':3 'bugs':11 'fi':9 'for':7 'hi':8 'hifi':10 'new':5 'phonoanomalies':1,2 'recording':6 'totally':4
                                     'search_rest'  '20':5 'a':2 'caravan':8 'loc':9 'mor':19 'mulcays':7 'pl':14 'set':11,13,16,18 'shirleyspinoza':15,17 'the':6 'unsorted':10,12 'v':1 'va':3 'wfmu':4
                                    'search_combo'  '20':19 'a':6C,16 'bugs':14C 'caravan':1A,22 'fi':12C 'for':10C 'hi':11C 'hifi':13C 'loc':23 'mor':33 'mulcays':3B,21 'new':8C 'phonoanomalies':4C,5C 'pl':28 'recording':9C 'set':25,27,30,32 'shirleyspinoza':29,31 'the':2B,20 'totally':7C 'unsorted':24,26 'v':15 'va':17 'wfmu':18
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629056.3122692  (2021-05-21 22:30:56)
                             'size'  3331718