======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '181'
                                          'artist'  'Tex Beneke With The Glenn Miller Orchestra'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Hey! Ba-Ba-Re-Bop'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '043'
                                      'tracktotal'  ''
                                            'date'  '1946'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '145.476'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1946'
'TIT2' (Title/songname/content description)         'Hey! Ba-Ba-Re-Bop'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '181000'
'TPE1' (Lead performer(s)/Soloist(s))               'Tex Beneke With The Glenn Miller Orchestra'
'TRCK' (Track number/Position in set)               '043'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.85 dB'
'TXXX:replaygain_track_peak'                        '0.401975'

========================== row from database ==========================
                                              'id'  1433314
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1946/1946-043 - Tex Beneke With The Glenn Miller Orchestra - Hey! Ba-Ba-Re-Bop.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  181
                                           'genre'  prerock-band
                                        'filesize'  7278592
                                           'mtime'  1620561152
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1946 1946 043 prerock band
                                      'tag_artist'  Tex Beneke With The Glenn Miller Orchestra
                                     'tag_release'  None
                                       'tag_title'  Hey! Ba-Ba-Re-Bop
                                             'bpm'  145.476
                                    'search_title'  'ba':2,3 'babarebop':6 'bop':5 'hey':1 're':4
                                   'search_artist'  'beneke':2 'glenn':5 'miller':6 'orchestra':7 'tex':1 'the':4 'with':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1946':6 'band':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':18 '1946':19 'ba':2A,3A 'babarebop':6A 'band':21 'beneke':8B 'bop':5A 'country':17 'exotica':15 'glenn':11B 'hey':1A 'jazz':14 'miller':12B 'oldies':16 'orchestra':13B 'prerock':20 're':4A 'tex':7B 'the':10B 'with':9B
                                    'tag_tracknum'  43
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1946
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561152.0323954  (2021-05-09 13:52:32)
                             'size'  7278592