======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '184'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Nikkatsu New Action -- Stray Cat Rock'
                                           'title'  "(Track 13 F. 'Nikkatsu New Action • Stray Cat Rock' JA '68-'71)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '16'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '101.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000025C3 0000000B 0001554C 00000083 00026DA1 00026B7D 00008C2A 00008375 '
 '0002C1D0 0002B0FA')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AE0 00000000007C2390 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '16+AE1A156C41F2934830FBF28997F03D1C+5893092'
'TALB' (Album/Movie/Show title)                     'Nikkatsu New Action -- Stray Cat Rock'
'TBPM' (BPM (beats per minute))                     '101.8'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         "(Track 13 F. 'Nikkatsu New Action • Stray Cat Rock' JA '68-'71)"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '13/16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-8.76 dB'
'TXXX:replaygain_track_peak'                        '1.207731'

========================== row from database ==========================
                                              'id'  1530340
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/• (Unk. Artist) - (Track 13 F. _Nikkatsu New Action • Stray Cat Rock_ JA _68-_71).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  184
                                           'genre'  funk or soul-funk
                                        'filesize'  3693374
                                           'mtime'  1620665622
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s (Unk. Artist) _Nikkatsu Rock_ _68 _71) funk or soul funk
                                      'tag_artist'  [unknown]
                                     'tag_release'  Nikkatsu New Action -- Stray Cat Rock
                                       'tag_title'  (Track 13 F. 'Nikkatsu New Action • Stray Cat Rock' JA '68-'71)
                                             'bpm'  101.8
                                    'search_title'  '68':14 '6871':16 '71':15 'action':8 'cat':10 'f':3,4 'ja':13 'new':7 'nikkatsu':5,6 'rock':11,12 'stray':9 'track':1,2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'action':3 'cat':5 'new':2 'nikkatsu':1 'rock':6 'stray':4
                                     'search_rest'  '68':14 '70':6 '71':15,16 'artist':10,11 'easy':4 'funk':2 'instr':5 'nikkatsu':12 'or':17 'rock':13 's':7 'soul':3 'swing':1 'unk':8,9
                                    'search_combo'  '68':14A,38 '6871':16A '70':30 '71':15A,39,40 'action':8A,21C 'artist':34,35 'cat':10A,23C 'easy':28 'f':3A,4A 'funk':26 'instr':29 'ja':13A 'new':7A,20C 'nikkatsu':5A,6A,19C,36 'or':41 'rock':11A,12A,24C,37 's':31 'soul':27 'stray':9A,22C 'swing':25 'track':1A,2A 'unk':32,33 'unknown':17B,18B
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665622.4472923  (2021-05-10 18:53:42)
                             'size'  3693374