======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '239'
                                          'artist'  'Simply Red'
                                     'text_people'  ''
                                         'release'  'Stars'
                                           'title'  'Something Got Me Started'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'british', 'soul', 'pop', 'rock']"
                                     'discogstags'  ("['electronic', 'rock', 'funk / soul', 'pop', 'soul', 'house', 'downtempo', "
 "'pop rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '112.134'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Stars'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Something Got Me Started'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Simply Red'
'TRCK' (Track number/Position in set)               '1'
'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:discogstags'                                  ['electronic',
 'rock',
 'funk / soul',
 'pop',
 'soul',
 'house',
 'downtempo',
 'pop rock']
'TXXX:lastfmtags'                                   ['80s', 'british', 'soul', 'pop', 'rock']
'TXXX:original release date'                        ['1991', '1991']
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.94 dB'
'TXXX:replaygain_track_peak'                        '0.532486'

========================== row from database ==========================
                                              'id'  1287505
                                            'path'  /data/Music/Bulk/00poprockelectronic/Simply Red/Stars/Simply - Something Got Me Started.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  239
                                           'genre'  rock-unsorted
                                        'filesize'  3832588
                                           'mtime'  1637784887
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock unsorted
                                      'tag_artist'  Simply Red
                                     'tag_release'  Stars
                                       'tag_title'  Something Got Me Started
                                             'bpm'  112.134
                                    'search_title'  'got':2 'me':3 'something':1 'started':4
                                   'search_artist'  'red':2 'simply':1
                                  'search_release'  'stars':1
                                     'search_rest'  '00poprockelectronic':1 'rock':2 'unsorted':3
                                    'search_combo'  '00poprockelectronic':8 'got':2A 'me':3A 'red':6B 'rock':9 'simply':5B 'something':1A 'stars':7C 'started':4A 'unsorted':10
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'british', 'soul', 'pop', 'rock']
                                        'tag_date'  1991
                                     'discogstags'  ['electronic', 'rock', 'funk / soul', 'pop', 'soul', 'house', 'downtempo', 'pop rock']

============================== file details ==============================
                                           'mtime'  1637784886.6117418  (2021-11-24 21:14:46)
                             'size'  3832588