======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '156'
                                          'artist'  'Ruby Short and his Dragsters'
                                     'text_people'  ''
                                         'release'  'Hot Rodders Battle Rock and Roll'
                                           'title'  'Wrecked T-Bird'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  '[\'hot rods\', \'instrumental rock\', "rock\'n\'roll", \'1960s\']'
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '84.000'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '365 Days Project'
'COMM:ID3v1 Comment:XXX'                            '365 Days Project'
'TALB' (Album/Movie/Show title)                     'Hot Rodders Battle Rock and Roll'
'TBPM' (BPM (beats per minute))                     '84.000'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Wrecked T-Bird'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ruby Short and his Dragsters'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hot rods', 'instrumental rock', "rock'n'roll", '1960s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.27 dB'
'TXXX:replaygain_track_peak'                        '0.537441'

========================== row from database ==========================
                                              'id'  1306974
                                            'path'  /data/Music/Bulk/00poprockelectronic/11/311_04_Ruby_Short_and_his_Dragsters_-_Wrecked_T-Bird.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  156
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  5119741
                                           'mtime'  1620525546
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 11 311_04_Ruby_Short_and_his_Dragsters_ _Wrecked_T rock rockabilly psychobilly
                                      'tag_artist'  Ruby Short and his Dragsters
                                     'tag_release'  Hot Rodders Battle Rock and Roll
                                       'tag_title'  Wrecked T-Bird
                                             'bpm'  84.0
                                    'search_title'  'bird':3 't':2 'tbird':4 'wrecked':1
                                   'search_artist'  'and':3 'dragsters':5 'his':4 'ruby':1 'short':2
                                  'search_release'  'and':5 'battle':3 'hot':1 'rock':4 'rodders':2 'roll':6
                                     'search_rest'  '00poprockelectronic':1 '04':3 '311':2 'and':6 'dragsters':8 'his':7 'psychobilly':13 'rock':11 'rockabilly':12 'ruby':4 'short':5 't':10 'wrecked':9
                                    'search_combo'  '00poprockelectronic':16 '04':18 '311':17 'and':7B,14C,21 'battle':12C 'bird':3A 'dragsters':9B,23 'his':8B,22 'hot':10C 'psychobilly':28 'rock':13C,26 'rockabilly':27 'rodders':11C 'roll':15C 'ruby':5B,19 'short':6B,20 't':2A,25 'tbird':4A 'wrecked':1A,24
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hot rods', 'instrumental rock', "rock'n'roll", '1960s']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525546.469949  (2021-05-09 03:59:06)
                             'size'  5119741