======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '395'
                                          'artist'  'Thieves Kitchen'
                                     'text_people'  ''
                                         'release'  'Progsoup 35'
                                           'title'  'cardinal red'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'progressive', 'neo progressive', 'uk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '110'
                                      'tracktotal'  '6'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '116.253'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '420F8B06'
'COMM:ID3v1 Comment:XXX'                            '420F8B06'
'TALB' (Album/Movie/Show title)                     'Progsoup 35'
'TBPM' (BPM (beats per minute))                     '116.253'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'cardinal red'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Thieves Kitchen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '110/6'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80.04, LAME dll 3.87, 224 Kbit/s, Joint Stereo, Normal quality'
'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:lastfmtags'                                   ['progressive rock', 'progressive', 'neo progressive', 'uk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.74 dB'
'TXXX:replaygain_track_peak'                        '0.438081'

========================== row from database ==========================
                                              'id'  1411477
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 36/2129 thieves kitchen - cardinal red.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  395
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  11068895
                                           'mtime'  1620737275
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 36 2129 thieves kitchen rock cppex progressive;set pl progspace
                                      'tag_artist'  Thieves Kitchen
                                     'tag_release'  Progsoup 35
                                       'tag_title'  cardinal red
                                             'bpm'  116.253
                                    'search_title'  'cardinal':1 'red':2
                                   'search_artist'  'kitchen':2 'thieves':1
                                  'search_release'  '35':2 'progsoup':1
                                     'search_rest'  '2129':4 '36':3 'classicprogpsy':1 'cppex':8 'kitchen':6 'pl':13 'progressive':9,11 'progsoup':2 'progspace':14 'rock':7 'set':10,12 'thieves':5
                                    'search_combo'  '2129':10 '35':6C '36':9 'cardinal':1A 'classicprogpsy':7 'cppex':14 'kitchen':4B,12 'pl':19 'progressive':15,17 'progsoup':5C,8 'progspace':20 'red':2A 'rock':13 'set':16,18 'thieves':3B,11
                                    'tag_tracknum'  110
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'progressive', 'neo progressive', 'uk']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737274.7302167  (2021-05-11 14:47:54)
                             'size'  11068895