======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '143'
                                          'artist'  'The Ramones'
                                     'text_people'  ''
                                         'release'  'Rocket To Russia'
                                           'title'  'Slug (Demo Version) (1977)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', '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-2']")
                                      'lastfmtags'  "['punk rock', 'punk', '70s', 'classic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '146.000'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Rocket To Russia'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Slug (Demo Version) (1977)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ramones'
'TPE2' (Band/orchestra/accompaniment)               'The Ramones'
'TPUB' (Publisher)                                  'Rhino Records'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['punk rock', 'punk', '70s', 'classic rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.423036'

========================== row from database ==========================
                                              'id'  768962
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/The Ramones - Slug (demo, 1977).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  143
                                           'genre'  set-pl-spelling
                                        'filesize'  3492988
                                           'mtime'  1620356433
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling (demo, set pl spelling
                                      'tag_artist'  The Ramones
                                     'tag_release'  Rocket To Russia
                                       'tag_title'  Slug (Demo Version) (1977)
                                             'bpm'  146.0
                                    'search_title'  '1977':6,7 'demo':2,3 'slug':1 'version':4,5
                                   'search_artist'  'ramones':2 'the':1
                                  'search_release'  'rocket':1 'russia':3 'to':2
                                     'search_rest'  '0novelty':2 '0playlists':1 'demo':5,6 'pl':8 'set':7 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':14 '0playlists':13 '1977':6A,7A 'demo':2A,3A,17,18 'pl':20 'ramones':9B 'rocket':10C 'russia':12C 'set':19 'slug':1A 'spelling':16 'the':8B 'themes':15 'to':11C 'version':4A,5A
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'punk', '70s', 'classic rock', 'rock']
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356432.5936928  (2021-05-07 05:00:32)
                             'size'  3492988