======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '155'
                                          'artist'  'Round Robin'
                                     'text_people'  ''
                                         'release'  'I Was A Teenage Brain Surgeon'
                                           'title'  "I'm The Wolfman"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rockabilly', 'psychobilly', 'rock', 'all', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '17'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '96.3'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'I Was A Teenage Brain Surgeon'
'TBPM' (BPM (beats per minute))                     '96.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TIT2' (Title/songname/content description)         "I'm The Wolfman"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Round Robin'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '7/17'
'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'                                   ['rockabilly', 'psychobilly', 'rock', 'all', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.26 dB'
'TXXX:replaygain_track_peak'                        '0.579221'

========================== row from database ==========================
                                              'id'  1519633
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - I Was A Teenage Brain Surgeon/07 I_m The Wolfman.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  155
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  3952811
                                           'mtime'  1620525474
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va 07 I_m rock rockabilly or psychobilly
                                      'tag_artist'  Round Robin
                                     'tag_release'  I Was A Teenage Brain Surgeon
                                       'tag_title'  I'm The Wolfman
                                             'bpm'  96.3
                                    'search_title'  'i':1 'im':3 'm':2 'the':4 'wolfman':5
                                   'search_artist'  'robin':2 'round':1
                                  'search_release'  'a':3 'brain':5 'i':1 'surgeon':6 'teenage':4 'was':2
                                     'search_rest'  'i':2 'm':3 'or':6 'psychobilly':7 'rock':4 'rockabilly':5 'va':1
                                    'search_combo'  'a':10C 'brain':12C 'i':1A,8C,15 'im':3A 'm':2A,16 'or':19 'psychobilly':20 'robin':7B 'rock':17 'rockabilly':18 'round':6B 'surgeon':13C 'teenage':11C 'the':4A 'va':14 'was':9C 'wolfman':5A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rockabilly', 'psychobilly', 'rock', 'all', '50s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525474.1848664  (2021-05-09 03:57:54)
                             'size'  3952811