======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '143'
                                          'artist'  'The Beach Boys'
                                     'text_people'  'Tony Asher & Brian Wilson'
                                         'release'  'The Boat That Rocked OST'
                                           'title'  "Wouldn't It Be Nice"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'rock', 'pop', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '18'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'soundtrack-video;rock-cppex;rock-surf'
                                             'bpm'  '122.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000E88 00000E88 00007ADA 00007ADA 00015B58 00015B58 00007B00 00007B00 '
 '000200F5 000200F5')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000954 000000000060711C 00000000 0057636E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'The Boat That Rocked OST'
'TBPM' (BPM (beats per minute))                     '122.6'
'TCOM' (Composer)                                   'Tony Asher & Brian Wilson'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-video', 'rock-cppex', 'rock-surf']
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'iTunes 8.1.0.52'
'TIT2' (Title/songname/content description)         "Wouldn't It Be Nice"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beach Boys'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '6/18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['surf', 'rock', 'pop', '60s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.409813'

========================== row from database ==========================
                                              'id'  1522224
                                            'path'  /data/Music/Bulk/0soundtrack/The Supremes - The boat that rocked OST/1-06 Wouldn_t It Be Nice.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  143
                                           'genre'  soundtrack-video;rock-cppex;rock-surf
                                        'filesize'  5909700
                                           'mtime'  1678463465
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Supremes boat that rocked 1 06 Wouldn_t soundtrack video;rock cppex;rock surf
                                      'tag_artist'  The Beach Boys
                                     'tag_release'  The Boat That Rocked OST
                                       'tag_title'  Wouldn't It Be Nice
                                             'bpm'  122.6
                                    'search_title'  'be':5 'it':4 'nice':6 't':2 'wouldn':1 'wouldnt':3
                                   'search_artist'  'beach':2 'boys':3 'the':1
                                  'search_release'  'boat':2 'ost':5 'rocked':4 'that':3 'the':1
                                     'search_rest'  '0soundtrack':1 '1':6 'boat':3 'cppex':14,16 'rock':11,13,15,17 'rocked':5 'soundtrack':9 'supremes':2 'surf':18 't':8 'that':4 'video':10,12 'wouldn':7
                                    'search_combo'  '0soundtrack':15 '1':20 'be':5A 'beach':8B 'boat':11C,17 'boys':9B 'cppex':28,30 'it':4A 'nice':6A 'ost':14C 'rock':25,27,29,31 'rocked':13C,19 'soundtrack':23 'supremes':16 'surf':32 't':2A,22 'that':12C,18 'the':7B,10C 'video':24,26 'wouldn':1A,21 'wouldnt':3A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['surf', 'rock', 'pop', '60s', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678463465.3195152  (2023-03-10 16:51:05)
                             'size'  5909700