======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '52'
                                          'artist'  'John Baker'
                                     'text_people'  ''
                                         'release'  ('The John Baker Tapes Volume 2: Soundtracks, Library, Home Recordings, '
 'Electro Ads 1963 - 1975')
                                           'title'  'JB At Home On The Piano'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
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 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']"
                                     'discogstags'  "['soundtrack', 'electronic', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '37'
                                      'tracktotal'  '39'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'soundtrack-unsorted;mi-guitar'
                                             'bpm'  '138.3'
                                             'key'  '8B'
                                        '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))                     '138.3'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-unsorted', 'mi-guitar']
'TDRC' (Recording time)                             '2008'
'TENC' (Encoded by)                                 'iTunes 10.3.1.55'
'TIT2' (Title/songname/content description)         'JB At Home On The Piano'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Baker'
'TRCK' (Track number/Position in set)               '37/39'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'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'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.94 dB'
'TXXX:replaygain_track_peak'                        '0.504721'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3O7Q158962049V287C91CF75C060F90C7F748C6F32808AA8P4\x00')

========================== row from database ==========================
                                              'id'  1120663
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The John Baker Tapes Volume 2_ Soundtracks, Library, Home Recordings, Electro Ads 1963 - 1975/37 JB At Home On The Piano.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  52
                                           'genre'  soundtrack-unsorted;mi-guitar
                                        'filesize'  1416988
                                           'mtime'  1642081773
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2_ 37 soundtrack unsorted;mi guitar
                                      'tag_artist'  John Baker
                                     'tag_release'  The John Baker Tapes Volume 2: Soundtracks, Library, Home Recordings, Electro Ads 1963 - 1975
                                       'tag_title'  JB At Home On The Piano
                                             'bpm'  138.3
                                    'search_title'  'at':2 'home':3 'jb':1 'on':4 'piano':6 'the':5
                                   '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 '37':2 'guitar':8 'mi':5,7 'soundtrack':3 'unsorted':4,6
                                    'search_combo'  '1963':25C '1975':26C '2':14C,15C,27 '37':28 'ads':24C 'at':2A 'baker':8B,11C 'electro':23C 'guitar':34 'home':3A,20C 'jb':1A 'john':7B,10C 'library':18C,19C 'mi':31,33 'on':4A 'piano':6A 'recordings':21C,22C 'soundtrack':29 'soundtracks':16C,17C 'tapes':12C 'the':5A,9C 'unsorted':30,32 'volume':13C
                                    'tag_tracknum'  37
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-1', 'q-mixbeat-2']
                                      'lastfmtags'  ['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']
                                        'tag_date'  2008
                                     'discogstags'  ['soundtrack', 'electronic', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1642081772.755257  (2022-01-13 14:49:32)
                             'size'  1416988