======================== unified (from filesystem) ========================
                                         'bitrate'  '209.497'
                                        'duration'  '351'
                                          'artist'  'The Hurricanes'
                                     'text_people'  ''
                                         'release'  'I Love Disco Diamonds Collection Vol. 23'
                                           'title'  'Only One Night'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', '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-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['surf rock', 'surf', 'italo disco', 'eurodisco', 'reggae']"
                                     'discogstags'  "['electronic', 'euro-disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '121.8'
                                             'key'  '10A'
                                        '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. 23'
'TBPM' (BPM (beats per minute))                     '121.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Only One Night'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Hurricanes'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'euro-disco']
'TXXX:lastfmtags'                                   ['surf rock', 'surf', 'italo disco', 'eurodisco', 'reggae']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.21 dB'
'TXXX:replaygain_track_peak'                        '0.484341'

========================== row from database ==========================
                                              'id'  1333275
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Rose - The Best Italo Disco/(04) [The Hurricanes] Only One Night.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  351
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  9214510
                                           'mtime'  1620610523
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Rose Best Italo (04) [The Hurricanes] electronic we disco or italo
                                      'tag_artist'  The Hurricanes
                                     'tag_release'  I Love Disco Diamonds Collection Vol. 23
                                       'tag_title'  Only One Night
                                             'bpm'  121.8
                                    'search_title'  'night':3 'one':2 'only':1
                                   'search_artist'  'hurricanes':2 'the':1
                                  'search_release'  '23':8 'collection':5 'diamonds':4 'disco':3 'i':1 'love':2 'vol':6,7
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '04':8,9 'best':7 'disco':3 'electronic':14 'hurricanes':12,13 'italo':5 'or':16 'rose':6 'the':10,11 'waves':2 'we':15
                                    'search_combo'  '00disco':17 '00poprockelectronic':14 '04':21,22 '23':13C 'best':20 'collection':10C 'diamonds':9C 'disco':8C,16 'electronic':27 'hurricanes':5B,25,26 'i':6C 'italo':18 'love':7C 'night':3A 'one':2A 'only':1A 'or':29 'rose':19 'the':4B,23,24 'vol':11C,12C 'waves':15 'we':28
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-2', '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-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['surf rock', 'surf', 'italo disco', 'eurodisco', 'reggae']
                                        'tag_date'  1985
                                     'discogstags'  ['electronic', 'euro-disco']

============================== file details ==============================
                                           'mtime'  1620610523.288314  (2021-05-10 03:35:23)
                             'size'  9214510