======================== unified (from filesystem) ========================
                                         'bitrate'  '222.989'
                                        'duration'  '209'
                                          'artist'  'Muse'
                                     'text_people'  ''
                                         'release'  'Black Holes and Revelations'
                                           'title'  'Supermassive Black Hole'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'epic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-pop;rock-cppex;rock-indie'
                                             'bpm'  '120.042'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Black Holes and Revelations'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop', 'rock-cppex', 'rock-indie']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Supermassive Black Hole'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Muse'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'epic', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'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'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.368820'

========================== row from database ==========================
                                              'id'  1355255
                                            'path'  /data/Music/Bulk/00poprockelectronic/Muse/Black Holes and Revelations__03 - Supermassive Black Hole.mp3
                                         'working'  None
                                         'bitrate'  223
                                    'duration_sec'  209
                                           'genre'  rock-pop;rock-cppex;rock-indie
                                        'filesize'  5841921
                                           'mtime'  1651570135
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Revelations__03 rock pop;rock cppex;rock indie
                                      'tag_artist'  Muse
                                     'tag_release'  Black Holes and Revelations
                                       'tag_title'  Supermassive Black Hole
                                             'bpm'  120.042
                                    'search_title'  'black':2 'hole':3 'supermassive':1
                                   'search_artist'  'muse':1
                                  'search_release'  'and':3 'black':1 'holes':2 'revelations':4
                                     'search_rest'  '00poprockelectronic':1 '03':3 'cppex':9,11 'indie':13 'pop':5,7 'revelations':2 'rock':4,6,8,10,12
                                    'search_combo'  '00poprockelectronic':9 '03':11 'and':7C 'black':2A,5C 'cppex':17,19 'hole':3A 'holes':6C 'indie':21 'muse':4B 'pop':13,15 'revelations':8C,10 'rock':12,14,16,18,20 'supermassive':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'epic', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1651570135.0071914  (2022-05-03 11:28:55)
                             'size'  5841921