======================== unified (from filesystem) ========================
                                         'bitrate'  '190.462'
                                        'duration'  '406'
                                          'artist'  'Savage'
                                     'text_people'  ''
                                         'release'  'I Love Disco Diamonds Collection Vol. 3'
                                           'title'  'Only You'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'nwobhm', 'italo disco', 'heavy metal', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '109.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         ' '
'COMM:iTunSMPB:eng'                                 (' 00000000 00000000 00000000 0000000000000000 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'I Love Disco Diamonds Collection Vol. 3'
'TBPM' (BPM (beats per minute))                     '109.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Only You'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Savage'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'nwobhm', 'italo disco', 'heavy metal', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.14 dB'
'TXXX:replaygain_track_peak'                        '0.447745'

========================== row from database ==========================
                                              'id'  1337227
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Rose - The Best Italo Disco/(04) [Savage] Only You.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  406
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  9693514
                                           'mtime'  1620610517
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Rose The Best Italo (04) [Savage] electronic we disco or italo
                                      'tag_artist'  Savage
                                     'tag_release'  I Love Disco Diamonds Collection Vol. 3
                                       'tag_title'  Only You
                                             'bpm'  109.2
                                    'search_title'  'only':1 'you':2
                                   'search_artist'  'savage':1
                                  'search_release'  '3':8 'collection':5 'diamonds':4 'disco':3 'i':1 'love':2 'vol':6,7
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '04':9,10 'best':8 'disco':3 'electronic':13 'italo':5 'or':15 'rose':6 'savage':11,12 'the':7 'waves':2 'we':14
                                    'search_combo'  '00disco':15 '00poprockelectronic':12 '04':20,21 '3':11C 'best':19 'collection':8C 'diamonds':7C 'disco':6C,14 'electronic':24 'i':4C 'italo':16 'love':5C 'only':1A 'or':26 'rose':17 'savage':3B,22,23 'the':18 'vol':9C,10C 'waves':13 'we':25 'you':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'nwobhm', 'italo disco', 'heavy metal', 'disco']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620610517.1236792  (2021-05-10 03:35:17)
                             'size'  9693514