======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'Esquivel'
                                     'text_people'  ''
                                         'release'  'Space Age Bachelor Pad Music'
                                           'title'  "Who's Sorry Now?"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-3', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'space age pop', 'exotica', 'latin', 'easy listening']"
                                     'discogstags'  "['space-age', 'jazz', 'latin jazz', 'latin', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1961'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '127.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Space Age Bachelor Pad Music'
'TBPM' (BPM (beats per minute))                     '127.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1961'
'TIT2' (Title/songname/content description)         "Who's Sorry Now?"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '159059'
'TPE1' (Lead performer(s)/Soloist(s))               'Esquivel'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['space-age', 'jazz', 'latin jazz', 'latin', 'easy listening']
'TXXX:lastfmtags'                                   ['lounge', 'space age pop', 'exotica', 'latin', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+4.07 dB'
'TXXX:replaygain_track_peak'                        '0.427729'

========================== row from database ==========================
                                              'id'  1503205
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - space age pop & mid century domestics (jingles & themes)/(1961) esquivel - who_s sorry now-.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3827670
                                           'mtime'  1620539424
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va space age pop & mid century domestics (jingles & themes) (1961) esquivel who_s sorry now prerock jb jazz lounge exotica bossa
                                      'tag_artist'  Esquivel
                                     'tag_release'  Space Age Bachelor Pad Music
                                       'tag_title'  Who's Sorry Now?
                                             'bpm'  127.4
                                    'search_title'  'now':5 's':2 'sorry':4 'who':1 'whos':3
                                   'search_artist'  'esquivel':1
                                  'search_release'  'age':2 'bachelor':3 'music':5 'pad':4 'space':1
                                     'search_rest'  '1961':12,13 'age':3 'bossa':24 'century':6 'domestics':7 'esquivel':14 'exotica':23 'jazz':21 'jb':20 'jingles':8,9 'lounge':22 'mid':5 'now':18 'pop':4 'prerock':19 's':16 'sorry':17 'space':2 'themes':10,11 'va':1 'who':15
                                    'search_combo'  '1961':23,24 'age':8C,14 'bachelor':9C 'bossa':35 'century':17 'domestics':18 'esquivel':6B,25 'exotica':34 'jazz':32 'jb':31 'jingles':19,20 'lounge':33 'mid':16 'music':11C 'now':5A,29 'pad':10C 'pop':15 'prerock':30 's':2A,27 'sorry':4A,28 'space':7C,13 'themes':21,22 'va':12 'who':1A,26 'whos':3A
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'space age pop', 'exotica', 'latin', 'easy listening']
                                        'tag_date'  1961
                                     'discogstags'  ['space-age', 'jazz', 'latin jazz', 'latin', 'easy listening']

============================== file details ==============================
                                           'mtime'  1620539424.36195  (2021-05-09 07:50:24)
                             'size'  3827670