======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '209'
                                          'artist'  'Jimmy Cross'
                                     'text_people'  ''
                                         'release'  'Ghouls With Attitude - Disc 2'
                                           'title'  'I Want My Baby Back'
                                           'quals'  ("['Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['american', 'awesome', 'usa', 'rockabilly', 'genre: country']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '114.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ghouls With Attitude - Disc 2'
'TBPM' (BPM (beats per minute))                     '114.7'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'I Want My Baby Back'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Cross'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['american', 'awesome', 'usa', 'rockabilly', 'genre: country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.412258'

========================== row from database ==========================
                                              'id'  719627
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/AAVV - ghouls with attitude vol. 2/20 - jimmy cross - i want my baby back.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  209
                                           'genre'  set-th-novelty
                                        'filesize'  5023387
                                           'mtime'  1620343146
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm AAVV ghouls with attitude vol. 20 jimmy cross want baby back set novelty
                                      'tag_artist'  Jimmy Cross
                                     'tag_release'  Ghouls With Attitude - Disc 2
                                       'tag_title'  I Want My Baby Back
                                             'bpm'  114.7
                                    'search_title'  'baby':4 'back':5 'i':1 'my':3 'want':2
                                   'search_artist'  'cross':2 'jimmy':1
                                  'search_release'  '2':5 'attitude':3 'disc':4 'ghouls':1 'with':2
                                     'search_rest'  '20':7 'aavv':1 'attitude':4 'baby':11 'back':12 'cross':9 'ghouls':2 'jimmy':8 'novelty':14 'set':13 'vol':5,6 'want':10 'with':3
                                    'search_combo'  '2':12C '20':19 'aavv':13 'attitude':10C,16 'baby':4A,23 'back':5A,24 'cross':7B,21 'disc':11C 'ghouls':8C,14 'i':1A 'jimmy':6B,20 'my':3A 'novelty':26 'set':25 'vol':17,18 'want':2A,22 'with':9C,15
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['american', 'awesome', 'usa', 'rockabilly', 'genre: country']
                                        'tag_date'  2004
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620343146.2945933  (2021-05-07 01:19:06)
                             'size'  5023387