======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '274'
                                          'artist'  'Estradasphere'
                                     'text_people'  ''
                                         'release'  'Progsoup 48'
                                           'title'  'Speck'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', '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']")
                                      'lastfmtags'  ("['experimental rock', 'avant garde', 'jazz', 'instrumental', 'progressive "
 "rock', 'experimental']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '10'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '115.130'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '10+34B93F01F65482A6B9B89F2BF'
'COMM:iTunes_CDDB_IDs:eng'                          '10+34B93F01F65482A6B9B89F2BFC008A1E+3402732'
"PRIV:AverageLevel:\x81'\x00\x00"                   PRIV(owner='AverageLevel', data=b"\x81'\x00\x00")
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Progsoup 48'
'TBPM' (BPM (beats per minute))                     '115.130'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Speck'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Estradasphere'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '7/10'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['experimental rock',
 'avant garde',
 'jazz',
 'instrumental',
 'progressive rock',
 'experimental']
'TXXX:q-bass'                                       '3'
'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'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.667114'

========================== row from database ==========================
                                              'id'  1413601
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 48/2710 estradasphere -  speck.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  274
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  6592560
                                           'mtime'  1620737485
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2710 estradasphere speck rock cppex progressive;set pl progspace
                                      'tag_artist'  Estradasphere
                                     'tag_release'  Progsoup 48
                                       'tag_title'  Speck
                                             'bpm'  115.13
                                    'search_title'  'speck':1
                                   'search_artist'  'estradasphere':1
                                  'search_release'  '48':2 'progsoup':1
                                     'search_rest'  '2710':3 'classicprogpsy':1 'cppex':7 'estradasphere':4 'pl':12 'progressive':8,10 'progsoup':2 'progspace':13 'rock':6 'set':9,11 'speck':5
                                    'search_combo'  '2710':7 '48':4C 'classicprogpsy':5 'cppex':11 'estradasphere':2B,8 'pl':16 'progressive':12,14 'progsoup':3C,6 'progspace':17 'rock':10 'set':13,15 'speck':1A,9
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['experimental rock', 'avant garde', 'jazz', 'instrumental', 'progressive rock', 'experimental']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737485.1352956  (2021-05-11 14:51:25)
                             'size'  6592560