======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '218'
                                          'artist'  'Frank Zappa'
                                     'text_people'  'Frank Zappa'
                                         'release'  'Freak Out!'
                                           'title'  "You're Probably Wonderin Why I'm Here"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '15'
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '138.040'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000304 00000368 0000141F'
'COMM:iTunNORM:eng'                                 (' 00000304 00000368 0000141F 00002D99 0000381F 0001B7E5 00006E06 0000788E '
 '0000381F 0000381F')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000990 000000000092C8E0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '15+62C30212A94EFEE8FA6A28DFDF273223+443426'
'TALB' (Album/Movie/Show title)                     'Freak Out!'
'TBPM' (BPM (beats per minute))                     '138.040'
'TCOM' (Composer)                                   'Frank Zappa'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1966'
'TENC' (Encoded by)                                 'iTunes v5.0.0.35'
'TIT2' (Title/songname/content description)         "You're Probably Wonderin Why I'm Here"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/15'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.791002'

========================== row from database ==========================
                                              'id'  1519327
                                            'path'  /data/Music/Bulk/00poprockelectronic/Frank Zappa/Freak Out!/Frank Zappa - freak out! - 11 - you_re probably wonderin why i.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  218
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  5239065
                                           'mtime'  1636757596
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic freak out! 11 you_re probably wonderin why ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Freak Out!
                                       'tag_title'  You're Probably Wonderin Why I'm Here
                                             'bpm'  138.04
                                    'search_title'  'here':10 'i':7 'im':9 'm':8 'probably':4 're':2 'why':6 'wonderin':5 'you':1 'youre':3
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'freak':1 'out':2
                                     'search_rest'  '00poprockelectronic':1 'experimental':11 'freak':2 'ifs':9 'out':3 'probably':6 're':5 'songwriter':10 'why':8 'wonderin':7 'you':4
                                    'search_combo'  '00poprockelectronic':15 'experimental':25 'frank':11B 'freak':13C,16 'here':10A 'i':7A 'ifs':23 'im':9A 'm':8A 'out':14C,17 'probably':4A,20 're':2A,19 'songwriter':24 'why':6A,22 'wonderin':5A,21 'you':1A,18 'youre':3A 'zappa':12B
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636757595.852201  (2021-11-12 23:53:15)
                             'size'  5239065