======================== unified (from filesystem) ========================
                                         'bitrate'  '203.663'
                                        'duration'  '408'
                                          'artist'  'buggles-Vermilion Sands'
                                     'text_people'  ''
                                         'release'  'progsoup 3'
                                           'title'  'buggles-Vermilion Sands'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '55'
                                      'tracktotal'  '19'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '104.015'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'progsoup 3'
'TBPM' (BPM (beats per minute))                     '104.015'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'buggles-Vermilion Sands'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'buggles-Vermilion Sands'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '55/19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.582890'
'TXXX:tracknum'                                     '196'

========================== row from database ==========================
                                              'id'  1409573
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup3/196 buggles-Vermilion Sands.mp3
                                         'working'  None
                                         'bitrate'  203
                                    'duration_sec'  408
                                           'genre'  rock-cppex-progressive
                                        'filesize'  10400704
                                           'mtime'  1620737664
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup3 196 rock cppex progressive
                                      'tag_artist'  buggles-Vermilion Sands
                                     'tag_release'  progsoup 3
                                       'tag_title'  buggles-Vermilion Sands
                                             'bpm'  104.015
                                    'search_title'  'buggles':1 'bugglesvermilion':3 'sands':4 'vermilion':2
                                   'search_artist'  'buggles':1 'bugglesvermilion':3 'sands':4 'vermilion':2
                                  'search_release'  '3':2 'progsoup':1
                                     'search_rest'  '196':4 'classicprogpsy':1 'cppex':6 'progressive':7 'progsoup':2 'progsoup3':3 'rock':5
                                    'search_combo'  '196':14 '3':10C 'buggles':1A,5B 'bugglesvermilion':3A,7B 'classicprogpsy':11 'cppex':16 'progressive':17 'progsoup':9C,12 'progsoup3':13 'rock':15 'sands':4A,8B 'vermilion':2A,6B
                                    'tag_tracknum'  55
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737664.404346  (2021-05-11 14:54:24)
                             'size'  10400704