======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '110'
                                          'artist'  'Buddy Knox'
                                     'text_people'  ''
                                         'release'  'The Best of Buddy Knox'
                                           'title'  "Swingin' Daddy"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'oldies', 'rockabilly', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.059'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '58-444 POS 80'
'COMM:ID3v1 Comment:XXX'                            '58-444 POS 80'
'TALB' (Album/Movie/Show title)                     'The Best of Buddy Knox'
'TBPM' (BPM (beats per minute))                     '145.059'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         "Swingin' Daddy"
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '110106'
'TPE1' (Lead performer(s)/Soloist(s))               'Buddy Knox'
'TRCK' (Track number/Position in set)               '13'
'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'                                   ['rock and roll', 'rock n roll', 'oldies', 'rockabilly', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '-1.05 dB'
'TXXX:replaygain_track_peak'                        '0.520844'

========================== row from database ==========================
                                              'id'  1514551
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-444 - Buddy Knox - Swingin_ Daddy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  110
                                           'genre'  prerock-unsorted
                                        'filesize'  4418588
                                           'mtime'  1621698384
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 444 Swingin_ prerock unsorted
                                      'tag_artist'  Buddy Knox
                                     'tag_release'  The Best of Buddy Knox
                                       'tag_title'  Swingin' Daddy
                                             'bpm'  145.059
                                    'search_title'  'daddy':3 'swingin':1,2
                                   'search_artist'  'buddy':1 'knox':2
                                  'search_release'  'best':2 'buddy':4 'knox':5 'of':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '444':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'swingin':9 'unsorted':11
                                    'search_combo'  '00oldiepop':15 '1958':16 '444':18 '58':17 'best':7C 'buddy':4B,9C 'country':14 'daddy':3A 'exotica':12 'jazz':11 'knox':5B,10C 'of':8C 'oldies':13 'prerock':20 'swingin':1A,2A,19 'the':6C 'unsorted':21
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  11B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'oldies', 'rockabilly', '50s']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698383.693304  (2021-05-22 17:46:23)
                             'size'  4418588