======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '495'
                                          'artist'  'Chic'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', '70s', 'soul', 'funk', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '110.785'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'C:\\Music New\\Chic - Good Tim'
'COMM:MusicMatch_Path:XXX'                          'C:\\Music New\\Chic - Good Times [Longer Disco Version].mp3'
'COMM:MusicMatch_Serial:XXX'                        '16746AB'
'TBPM' (BPM (beats per minute))                     '110.785'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '494000'
'TPE1' (Lead performer(s)/Soloist(s))               'Chic'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:TITLE'                                        'Good Times (long version)'
'TXXX:lastfmtags'                                   ['dance', '70s', 'soul', 'funk', 'disco']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+3.12 dB'
'TXXX:replaygain_track_peak'                        '0.786857'

========================== row from database ==========================
                                              'id'  1285295
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/OLD SCHOOL Chic-Good Times (long version).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  495
                                           'genre'  funk or soul
                                        'filesize'  7925632
                                           'mtime'  1621696780
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] OLD SCHOOL Good Times (long version) funk or soul
                                      'tag_artist'  Chic
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  110.785
                                    'search_title'  None
                                   'search_artist'  'chic':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'funk':15 'good':9 'long':11,12 'loose':3,4 'old':7 'or':16 'school':8 'soul':17 'times':10 'unsorted':2 'version':13,14
                                    'search_combo'  '00poprockelectronic':2 'chic':1B 'files':6,7 'funk':16 'good':10 'long':12,13 'loose':4,5 'old':8 'or':17 'school':9 'soul':18 'times':11 'unsorted':3 'version':14,15
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', '70s', 'soul', 'funk', 'disco']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696780.1514714  (2021-05-22 17:19:40)
                             'size'  7925632