======================== unified (from filesystem) ========================
                                         'bitrate'  '200.899'
                                        'duration'  '322'
                                          'artist'  'Joy Peters'
                                     'text_people'  ''
                                         'release'  'I Love Disco Diamonds Collection Vol. 7'
                                           'title'  "Don't Lose Your Heart Tonight"
                                           '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-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'italo disco', 'electronic', 'eurodisco', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '118.3'
                                             'key'  '6A'
                                        '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. 7'
'TBPM' (BPM (beats per minute))                     '118.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         "Don't Lose Your Heart Tonight"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Joy Peters'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'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', 'italo disco', 'electronic', 'eurodisco', '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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.08 dB'
'TXXX:replaygain_track_peak'                        '0.413835'

========================== row from database ==========================
                                              'id'  1518312
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Rose - The Best Italo Disco/(10) [Joy Peters] Don_t Lose Your Heart Tonight.mp3
                                         'working'  None
                                         'bitrate'  200
                                    'duration_sec'  322
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  8092578
                                           'mtime'  1620610672
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Rose The Best Italo (10) [Joy Peters] Don_t electronic we disco or italo
                                      'tag_artist'  Joy Peters
                                     'tag_release'  I Love Disco Diamonds Collection Vol. 7
                                       'tag_title'  Don't Lose Your Heart Tonight
                                             'bpm'  118.3
                                    'search_title'  'don':1 'dont':3 'heart':6 'lose':4 't':2 'tonight':7 'your':5
                                   'search_artist'  'joy':1 'peters':2
                                  'search_release'  '7':8 'collection':5 'diamonds':4 'disco':3 'i':1 'love':2 'vol':6,7
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '10':9,10 'best':8 'disco':3 'don':15 'electronic':17 'italo':5 'joy':11,12 'or':19 'peters':13,14 'rose':6 't':16 'the':7 'waves':2 'we':18
                                    'search_combo'  '00disco':21 '00poprockelectronic':18 '10':26,27 '7':17C 'best':25 'collection':14C 'diamonds':13C 'disco':12C,20 'don':1A,32 'dont':3A 'electronic':34 'heart':6A 'i':10C 'italo':22 'joy':8B,28,29 'lose':4A 'love':11C 'or':36 'peters':9B,30,31 'rose':23 't':2A,33 'the':24 'tonight':7A 'vol':15C,16C 'waves':19 'we':35 'your':5A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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', 'italo disco', 'electronic', 'eurodisco', 'disco']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620610672.3131495  (2021-05-10 03:37:52)
                             'size'  8092578