======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'John Baker'
                                     'text_people'  ''
                                         'release'  ('The John Baker Tapes Volume 2: Soundtracks, Library, Home Recordings, '
 'Electro Ads 1963 - 1975')
                                           'title'  'Feedback MQ LP48/3'
                                           'quals'  ("['Q-UNU-2', 'Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']"
                                     'discogstags'  "['soundtrack', 'electronic', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '32'
                                      'tracktotal'  '39'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'soundtrack-library;electronic-experimental-early;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '136.7'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::XXX'                                         '39++'
'TALB' (Album/Movie/Show title)                     ('The John Baker Tapes Volume 2: Soundtracks, Library, Home Recordings, '
 'Electro Ads 1963 - 1975')
'TBPM' (BPM (beats per minute))                     '136.7'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-library',
 'electronic-experimental-early',
 'set-pl-shirleyspinoza',
 'set-pl-mor']
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes 10.3.1.55'
'TIT2' (Title/songname/content description)         'Feedback MQ LP48/3'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Baker'
'TRCK' (Track number/Position in set)               '32/39'
'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'                                  ['soundtrack', 'electronic', 'stage & screen']
'TXXX:lastfmtags'                                   ['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.510722'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3M101Q158962044U28818C28EFFFA1C707110A9E289EDAD7412P0\x00')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The John Baker Tapes Volume 2_ Soundtracks, Library, Home Recordings, Electro Ads 1963 - 1975/32 Feedback MQ LP48_3.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  soundtrack-library;electronic-experimental-early;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4426347
                                           'mtime'  1639510551
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2_ 32 LP48_3 soundtrack library;electronic experimental early;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  John Baker
                                     'tag_release'  The John Baker Tapes Volume 2: Soundtracks, Library, Home Recordings, Electro Ads 1963 - 1975
                                       'tag_title'  Feedback MQ LP48/3
                                             'bpm'  136.7
                                    'search_title'  '3':4 'feedback':1 'lp48':3 'lp483':5 'mq':2
                                   'search_artist'  'baker':2 'john':1
                                  'search_release'  '1963':17 '1975':18 '2':6,7 'ads':16 'baker':3 'electro':15 'home':12 'john':2 'library':10,11 'recordings':13,14 'soundtracks':8,9 'tapes':4 'the':1 'volume':5
                                     'search_rest'  '2':1 '3':4 '32':2 'early':11,13 'electronic':7,9 'experimental':10 'library':6,8 'lp48':3 'mor':20 'pl':15 'set':12,14,17,19 'shirleyspinoza':16,18 'soundtrack':5
                                    'search_combo'  '1963':24C '1975':25C '2':13C,14C,26 '3':4A,29 '32':27 'ads':23C 'baker':7B,10C 'early':36,38 'electro':22C 'electronic':32,34 'experimental':35 'feedback':1A 'home':19C 'john':6B,9C 'library':17C,18C,31,33 'lp48':3A,28 'lp483':5A 'mor':45 'mq':2A 'pl':40 'recordings':20C,21C 'set':37,39,42,44 'shirleyspinoza':41,43 'soundtrack':30 'soundtracks':15C,16C 'tapes':11C 'the':8C 'volume':12C
                                    'tag_tracknum'  32
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']
                                        'tag_date'  2008
                                     'discogstags'  ['soundtrack', 'electronic', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1639510550.6706018  (2021-12-14 20:35:50)
                             'size'  4426347