======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '501'
                                          'artist'  'The Underground Railroad'
                                     'text_people'  ''
                                         'release'  'progsoup 10'
                                           'title'  'Halo'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['art rock', 'progressive rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '8'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '137.665'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000042E 000004E2 00001E6E'
'COMM:iTunNORM:eng'                                 (' 0000042E 000004E2 00001E6E 000022DF 0005F3B5 0006B705 00006DB2 00007486 '
 '00015FD5 0006B705')
'TALB' (Album/Movie/Show title)                     'progsoup 10'
'TBPM' (BPM (beats per minute))                     '137.665'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace', 'set-pl-progspace']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Halo'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Underground Railroad'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4/8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['art rock', 'progressive rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.601198'

========================== row from database ==========================
                                              'id'  1409310
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/Progsoup 10/581 the underground railroad -halo.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  501
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  16052515
                                           'mtime'  1620736263
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP Progsoup 581 the underground railroad halo rock cppex progressive;set pl progspace
                                      'tag_artist'  The Underground Railroad
                                     'tag_release'  progsoup 10
                                       'tag_title'  Halo
                                             'bpm'  137.665
                                    'search_title'  'halo':1
                                   'search_artist'  'railroad':3 'the':1 'underground':2
                                  'search_release'  'progsoup':1
                                     'search_rest'  '581':3 'classicprogpsy':1 'cppex':9 'halo':7 'pl':14 'progressive':10,12 'progsoup':2 'progspace':15 'railroad':6 'rock':8 'set':11,13 'the':4 'underground':5
                                    'search_combo'  '581':8 'classicprogpsy':6 'cppex':14 'halo':1A,12 'pl':19 'progressive':15,17 'progsoup':5C,7 'progspace':20 'railroad':4B,11 'rock':13 'set':16,18 'the':2B,9 'underground':3B,10
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['art rock', 'progressive rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736262.9920886  (2021-05-11 14:31:02)
                             'size'  16052515