======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '179'
                                          'artist'  'SVT'
                                     'text_people'  ''
                                         'release'  'Extended Play'
                                           'title'  'Modern Living'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['power pop', 'rock', 'new wave', 'classic rock', '70s']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'set-pl-spelling'
                                             'bpm'  '89.572'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Extended Play'
'TBPM' (BPM (beats per minute))                     '89.572'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-spelling'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Modern Living'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'SVT'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['power pop', 'rock', 'new wave', 'classic rock', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.27 dB'
'TXXX:replaygain_track_peak'                        '0.510226'

========================== row from database ==========================
                                              'id'  760289
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/spelling/SVT - Modern Living.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  179
                                           'genre'  set-pl-spelling
                                        'filesize'  7167872
                                           'mtime'  1620356398
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes spelling set pl spelling
                                      'tag_artist'  SVT
                                     'tag_release'  Extended Play
                                       'tag_title'  Modern Living
                                             'bpm'  89.572
                                    'search_title'  'living':2 'modern':1
                                   'search_artist'  'svt':1
                                  'search_release'  'extended':1 'play':2
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':6 'set':5 'spelling':4 'themes':3
                                    'search_combo'  '0novelty':7 '0playlists':6 'extended':4C 'living':2A 'modern':1A 'pl':11 'play':5C 'set':10 'spelling':9 'svt':3B 'themes':8
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['power pop', 'rock', 'new wave', 'classic rock', '70s']
                                        'tag_date'  1980
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620356397.6735404  (2021-05-07 04:59:57)
                             'size'  7167872