======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '356'
                                          'artist'  'Wings'
                                     'text_people'  ''
                                         'release'  'All the Best!'
                                           'title'  'Silly Love Songs'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-3']")
                                      'lastfmtags'  "['pop', 'rock', 'british', '70s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '124.011'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'All the Best!'
'TBPM' (BPM (beats per minute))                     '124.011'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Silly Love Songs'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wings'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'rock', 'british', '70s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.42 dB'
'TXXX:replaygain_track_peak'                        '0.779040'

========================== row from database ==========================
                                              'id'  1342807
                                            'path'  /data/Music/Bulk/00poprockelectronic/Wings/Paul Mccartney__cifsf584.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  356
                                           'genre'  rock-cppex
                                        'filesize'  5704381
                                           'mtime'  1620737454
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Paul Mccartney__cifsf584 rock cppex
                                      'tag_artist'  Wings
                                     'tag_release'  All the Best!
                                       'tag_title'  Silly Love Songs
                                             'bpm'  124.011
                                    'search_title'  'love':2 'silly':1 'songs':3
                                   'search_artist'  'wings':1
                                  'search_release'  'all':1 'best':3 'the':2
                                     'search_rest'  '00poprockelectronic':1 'cifsf584':4 'cppex':6 'mccartney':3 'paul':2 'rock':5
                                    'search_combo'  '00poprockelectronic':8 'all':5C 'best':7C 'cifsf584':11 'cppex':13 'love':2A 'mccartney':10 'paul':9 'rock':12 'silly':1A 'songs':3A 'the':6C 'wings':4B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', 'british', '70s', 'classic rock']
                                        'tag_date'  1976
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737454.4633813  (2021-05-11 14:50:54)
                             'size'  5704381