======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '150'
                                          'artist'  'The Trashmen'
                                     'text_people'  ''
                                         'release'  "Surfin' Bird"
                                           'title'  'King of The Surf'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'garage rock', '60s', 'surf rock', 'rock']"
                                     'discogstags'  "['rock', 'surf', 'garage rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '123.406'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Surfin' Bird"
'TBPM' (BPM (beats per minute))                     '123.406'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TIT2' (Title/songname/content description)         'King of The Surf'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Trashmen'
'TPE2' (Band/orchestra/accompaniment)               'The Trashmen'
'TRCK' (Track number/Position in set)               '2'
'TXXX:DATE'                                         '1964'
'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:discogstags'                                  ['rock', 'surf', 'garage rock']
'TXXX:lastfmtags'                                   ['surf', 'garage rock', '60s', 'surf rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.504622'

========================== row from database ==========================
                                              'id'  1525539
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Trashmen/Surfin_ Bird/02 King of The Surf.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  150
                                           'genre'  rock-pop-surf
                                        'filesize'  4257664
                                           'mtime'  1620737324
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Surfin_ 02 rock pop surf
                                      'tag_artist'  The Trashmen
                                     'tag_release'  Surfin' Bird
                                       'tag_title'  King of The Surf
                                             'bpm'  123.406
                                    'search_title'  'king':1 'of':2 'surf':4 'the':3
                                   'search_artist'  'the':1 'trashmen':2
                                  'search_release'  'bird':3 'surfin':1,2
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'surf':5 'surfin':2
                                    'search_combo'  '00poprockelectronic':10 'bird':9C 'king':1A 'of':2A 'pop':13 'rock':12 'surf':4A,14 'surfin':7C,8C,11 'the':3A,5B 'trashmen':6B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'garage rock', '60s', 'surf rock', 'rock']
                                        'tag_date'  1964
                                     'discogstags'  ['rock', 'surf', 'garage rock']

============================== file details ==============================
                                           'mtime'  1620737323.5963614  (2021-05-11 14:48:43)
                             'size'  4257664