======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '128'
                                          'artist'  'Tak Shindo'
                                     'text_people'  ''
                                         'release'  'Ultra-Lounge, Vol. 3: Space Capades'
                                           'title'  'Stumbling'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'space age pop', 'exotica', 'japanese', 'easy listening']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '142.7'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ultra-Lounge, Vol. 3: Space Capades'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Stumbling'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '128731'
'TPE1' (Lead performer(s)/Soloist(s))               'Tak Shindo'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['lounge', 'space age pop', 'exotica', 'japanese', 'easy listening']
'TXXX:q-bass'                                       '4'
'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-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.615390'

========================== row from database ==========================
                                              'id'  746188
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - space age pop & mid century domestics (jingles & themes)/(1960) tak shindo - stumbling.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  128
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3099794
                                           'mtime'  1620539405
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va space age pop & mid century domestics (jingles & themes) (1960) tak shindo stumbling prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Tak Shindo
                                     'tag_release'  Ultra-Lounge, Vol. 3: Space Capades
                                       'tag_title'  Stumbling
                                             'bpm'  142.7
                                    'search_title'  'stumbling':1
                                   'search_artist'  'shindo':2 'tak':1
                                  'search_release'  '3':6,7 'capades':9 'lounge':2 'space':8 'ultra':1 'ultralounge':3 'vol':4,5
                                     'search_rest'  '1960':12,13 'age':3 'bossa':23 'century':6 'domestics':7 'exotica':22 'jazz':19 'jb':18 'jingles':8,9 'lounge':20 'mid':5 'or':21 'pop':4 'prerock':17 'shindo':15 'space':2 'stumbling':16 'tak':14 'themes':10,11 'va':1
                                    'search_combo'  '1960':24,25 '3':9C,10C 'age':15 'bossa':35 'capades':12C 'century':18 'domestics':19 'exotica':34 'jazz':31 'jb':30 'jingles':20,21 'lounge':5C,32 'mid':17 'or':33 'pop':16 'prerock':29 'shindo':3B,27 'space':11C,14 'stumbling':1A,28 'tak':2B,26 'themes':22,23 'ultra':4C 'ultralounge':6C 'va':13 'vol':7C,8C
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', '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-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'space age pop', 'exotica', 'japanese', 'easy listening']
                                        'tag_date'  1960
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620539404.9318745  (2021-05-09 07:50:04)
                             'size'  3099794