======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '410'
                                          'artist'  'Mono Mono'
                                     'text_people'  ''
                                         'release'  'Nigeria Special: Modern Highlife, Afro-Sounds & Nigerian Blues 1970-76'
                                           'title'  'Ema Kowa Iasa Ile Wa'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-2', 'q-chart-1', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['nigeria', 'african', 'afrobeat', 'world', 'africa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '26'
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '104.0'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000829 00000727 0000A580 0000B943 0002B48D 00061714 000086CE 00008335 '
 '0006231F 0006231F')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008E8 0000000001141C08 00000000 00FA59CC 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '13+EC7C648540CE7A04C14535EA9B12E366+10200044'
'TALB' (Album/Movie/Show title)                     'Nigeria Special: Modern Highlife, Afro-Sounds & Nigerian Blues 1970-76'
'TBPM' (BPM (beats per minute))                     '104.0'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '1972'
'TENC' (Encoded by)                                 'iTunes v7.6.0.29'
'TIT2' (Title/songname/content description)         'Ema Kowa Iasa Ile Wa'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mono Mono'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11/26'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['nigeria', 'african', 'afrobeat', 'world', 'africa']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.00 dB'
'TXXX:replaygain_track_peak'                        '0.525305'

========================== row from database ==========================
                                              'id'  298726
                                            'path'  /data/Music/Bulk/00instruments-classical/various artists - nigeria special-modern highlife, afro-sounds & nigerian blues 1970-76 [2008]/111 mono mono - ema kowa iasa ile wa.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  410
                                           'genre'  loc-africa-nigeria
                                        'filesize'  16597914
                                           'mtime'  1621629062
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical various artists nigeria special modern highlife, afro sounds nigerian blues [2008] 111 mono mono ema kowa iasa ile loc africa nigeria
                                      'tag_artist'  Mono Mono
                                     'tag_release'  Nigeria Special: Modern Highlife, Afro-Sounds & Nigerian Blues 1970-76
                                       'tag_title'  Ema Kowa Iasa Ile Wa
                                             'bpm'  104.0
                                    'search_title'  'ema':1 'iasa':3 'ile':4 'kowa':2 'wa':5
                                   'search_artist'  'mono':1
                                  'search_release'  '1970':12 '197076':14 '76':13 'afro':7 'afrosounds':9 'blues':11 'highlife':5,6 'modern':4 'nigeria':1 'nigerian':10 'sounds':8 'special':2,3
                                     'search_rest'  '00instruments':1 '111':16 '2008':14,15 'africa':23 'afro':10 'artists':4 'blues':13 'classical':2 'ema':18 'highlife':8,9 'iasa':20 'ile':21 'kowa':19 'loc':22 'modern':7 'mono':17 'nigeria':5 'nigerian':12 'sounds':11 'special':6 'various':3
                                    'search_combo'  '00instruments':21 '111':36 '1970':18C '197076':20C '2008':34,35 '76':19C 'africa':43 'afro':13C,30 'afrosounds':15C 'artists':24 'blues':17C,33 'classical':22 'ema':1A,38 'highlife':11C,12C,28,29 'iasa':3A,40 'ile':4A,41 'kowa':2A,39 'loc':42 'modern':10C,27 'mono':6B,37 'nigeria':7C,25 'nigerian':16C,32 'sounds':14C,31 'special':8C,9C,26 'various':23 'wa':5A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['nigeria', 'african', 'afrobeat', 'world', 'africa']
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629061.8561528  (2021-05-21 22:31:01)
                             'size'  16597914