======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '314'
                                          'artist'  'Strawbs'
                                     'text_people'  ''
                                         'release'  'Ghosts'
                                           'title'  'Starshine/Angel Wine'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']"
                                     'discogstags'  "['rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1974'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '130.903'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ghosts'
'TBPM' (BPM (beats per minute))                     '130.903'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1974'
'TIT2' (Title/songname/content description)         'Starshine/Angel Wine'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Strawbs'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'prog rock']
'TXXX:lastfmtags'                                   ['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.385195'

========================== row from database ==========================
                                              'id'  134025
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Unsorted/Ghosts__cifsc18f.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  314
                                           'genre'  rock-cppex
                                        'filesize'  5033469
                                           'mtime'  1620735996
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Unsorted Ghosts__cifsc18f rock cppex
                                      'tag_artist'  Strawbs
                                     'tag_release'  Ghosts
                                       'tag_title'  Starshine/Angel Wine
                                             'bpm'  130.903
                                    'search_title'  'angel':2 'starshine':1 'starshineangel':3 'wine':4
                                   'search_artist'  'strawbs':1
                                  'search_release'  'ghosts':1
                                     'search_rest'  'cifsc18f':3 'cppex':5 'ghosts':2 'rock':4 'unsorted':1
                                    'search_combo'  'angel':2A 'cifsc18f':9 'cppex':11 'ghosts':6C,8 'rock':10 'starshine':1A 'starshineangel':3A 'strawbs':5B 'unsorted':7 'wine':4A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']
                                        'tag_date'  1974
                                     'discogstags'  ['rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1620735996.4465425  (2021-05-11 14:26:36)
                             'size'  5033469