======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '442'
                                          'artist'  'Heldon'
                                     'text_people'  'François Auger'
                                         'release'  'Interface'
                                           'title'  'Bal-A-Fou'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']"
                                     'discogstags'  "['electronic', 'rock', 'prog rock', 'space rock', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '8'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '94.8'
                                             'key'  '10A'
                                        'acoustid'  'b2beb5d4-ef5f-4afe-8a16-a1f460638cc2'
rest: ''

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

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'PRIV:WM/WMCollectionID:=\x9a¾Ü\x83e\x8fM¾ ø´àÜoå'  PRIV(owner='WM/WMCollectionID', data=b'=\x9a\xbe\xdc\x83e\x8fM\xbe \xf8\xb4\xe0\xdco\xe5')
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'TALB' (Album/Movie/Show title)                     'Interface'
'TBPM' (BPM (beats per minute))                     '94.8'
'TCOM' (Composer)                                   'François Auger'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDOR' (Original release time)                      '1977'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Bal-A-Fou'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Heldon'
'TPE2' (Band/orchestra/accompaniment)               'Heldon'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Cuneiform Records'
'TRCK' (Track number/Position in set)               '4/8'
'TSO2'                                              'Heldon'
'TSOP' (Performer sort order)                       'Heldon'
'TXXX:ASIN'                                         'B000009TG3'
'TXXX:Acoustid Id'                                  'b2beb5d4-ef5f-4afe-8a16-a1f460638cc2'
'TXXX:MusicBrainz Album Artist Id'                  '7d27cd96-7410-4e08-92b6-35255e677b9f'
'TXXX:MusicBrainz Album Id'                         '7ace9b68-ef4f-47b6-a0dd-c5bbf31b5fab'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7d27cd96-7410-4e08-92b6-35255e677b9f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'prog rock', 'space rock', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']
'TXXX:q-bass'                                       '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.26 dB'
'TXXX:replaygain_track_peak'                        '0.713901'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'827e172e-1933-429d-bd72-ffd96ed906e3')

========================== row from database ==========================
                                              'id'  1413931
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Heldon - Interface (1977)/04 bal-a-fou.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  442
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  14180245
                                           'mtime'  1620736183
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1977) 04 bal fou rock cppex progressive;set pl progspace
                                      'tag_artist'  Heldon
                                     'tag_release'  Interface
                                       'tag_title'  Bal-A-Fou
                                             'bpm'  94.8
                                    'search_title'  'a':2 'bal':1 'balafou':4 'fou':3
                                   'search_artist'  'heldon':1
                                  'search_release'  'interface':1
                                     'search_rest'  '1977':2,3 'bal':4 'classicprogpsy':1 'cppex':7 'fou':5 'pl':12 'progressive':8,10 'progspace':13 'rock':6 'set':9,11
                                    'search_combo'  '1977':8,9 'a':2A 'bal':1A,10 'balafou':4A 'classicprogpsy':7 'cppex':13 'fou':3A,11 'heldon':5B 'interface':6C 'pl':18 'progressive':14,16 'progspace':19 'rock':12 'set':15,17
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']
                                        'tag_date'  1977
                                     'discogstags'  ['electronic', 'rock', 'prog rock', 'space rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1620736183.1403205  (2021-05-11 14:29:43)
                             'size'  14180245