======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '157'
                                          'artist'  'The Shirelles'
                                     'text_people'  ''
                                         'release'  'For Collectors Only - Disc 1'
                                           'title'  'A Teardrop And A Lollipop'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-th-candy;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '84.175'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'CD-8821'
'COMM:MusicMatch_Preference:\x00\x00\x00'           'CD-8821'
'TALB' (Album/Movie/Show title)                     'For Collectors Only - Disc 1'
'TBPM' (BPM (beats per minute))                     '84.175'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-candy', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'A Teardrop And A Lollipop'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '157962'
'TPE1' (Lead performer(s)/Soloist(s))               'The Shirelles'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.574568'

========================== row from database ==========================
                                              'id'  735849
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Shirelles - A Teardrop And A Lollipop.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  157
                                           'genre'  set-th-candy;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3282150
                                           'mtime'  1620343132
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets set th candy;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  The Shirelles
                                     'tag_release'  For Collectors Only - Disc 1
                                       'tag_title'  A Teardrop And A Lollipop
                                             'bpm'  84.175
                                    'search_title'  'a':1 'and':3 'lollipop':4 'teardrop':2
                                   'search_artist'  'shirelles':2 'the':1
                                  'search_release'  '1':5 'collectors':2 'disc':4 'for':1 'only':3
                                     'search_rest'  'candy':8,10 'country':4 'exotica':2 'jazz':1 'mor':17 'oldies':3 'pl':12 'set':6,9,11,14,16 'shirleyspinoza':13,15 'sweets':5 'th':7
                                    'search_combo'  '1':11C 'a':1A 'and':3A 'candy':19,21 'collectors':8C 'country':15 'disc':10C 'exotica':13 'for':7C 'jazz':12 'lollipop':4A 'mor':28 'oldies':14 'only':9C 'pl':23 'set':17,20,22,25,27 'shirelles':6B 'shirleyspinoza':24,26 'sweets':16 'teardrop':2A 'th':18 'the':5B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343131.5564556  (2021-05-07 01:18:51)
                             'size'  3282150