======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '125'
                                          'artist'  'Stan Robinson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Boom-A-Dip-Dip'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '87.672'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-479 POS 83'
'COMM:ID3v1 Comment:XXX'                            '59-479 POS 83'
'TBPM' (BPM (beats per minute))                     '87.672'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Boom-A-Dip-Dip'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stan Robinson'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'oldies'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.417789'

========================== row from database ==========================
                                              'id'  1442889
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-479 - Stan Robinson - Boom-A-Dip-Dip.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  125
                                           'genre'  prerock-unsorted
                                        'filesize'  5037369
                                           'mtime'  1621698427
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 479 prerock unsorted
                                      'tag_artist'  Stan Robinson
                                     'tag_release'  None
                                       'tag_title'  Boom-A-Dip-Dip
                                             'bpm'  87.672
                                    'search_title'  'a':2 'boom':1 'boomadipdip':5 'dip':3,4
                                   'search_artist'  'robinson':2 'stan':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1959':6 '479':8 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':12 '1959':13 '479':15 '59':14 'a':2A 'boom':1A 'boomadipdip':5A 'country':11 'dip':3A,4A 'exotica':9 'jazz':8 'oldies':10 'prerock':16 'robinson':7B 'stan':6B 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['oldies']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698426.9885898  (2021-05-22 17:47:06)
                             'size'  5037369