======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '184'
                                          'artist'  "Guns N' Roses"
                                     'text_people'  ''
                                         'release'  'Use Your Illusion I'
                                           'title'  'Live And Let Die'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', '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-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'hard rock', 'metal', 'rock']"
                                     'discogstags'  "['rock', 'rock & roll', 'hard rock', 'pop rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '143.517'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Use Your Illusion I'
'TBPM' (BPM (beats per minute))                     '143.517'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Live And Let Die'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               "Guns N' Roses"
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'rock & roll', 'hard rock', 'pop rock', 'classic rock']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'hard rock', 'metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.570692'

========================== row from database ==========================
                                              'id'  1523269
                                            'path'  /data/Music/Bulk/00poprockelectronic/Guns N_ Roses/Guns N_ Roses__MBZ;#Guns n Roses;#Use Your Illusion I;#03;#Live and Let Die.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  184
                                           'genre'  rock-unsorted
                                        'filesize'  2946828
                                           'mtime'  1620389822
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic N_ N_ Roses__MBZ;#Guns Roses;#Use I;#03;#Live and rock unsorted
                                      'tag_artist'  Guns N' Roses
                                     'tag_release'  Use Your Illusion I
                                       'tag_title'  Live And Let Die
                                             'bpm'  143.517
                                    'search_title'  'and':2 'die':4 'let':3 'live':1
                                   'search_artist'  'guns':1 'n':2,3 'roses':4
                                  'search_release'  'i':4 'illusion':3 'use':1 'your':2
                                     'search_rest'  '00poprockelectronic':1 '03':14,17 'and':19 'guns':5,8 'i':13,16 'live':15,18 'mbz':4,7 'n':2 'rock':20 'roses':3,6,9,11 'unsorted':21 'use':10,12
                                    'search_combo'  '00poprockelectronic':13 '03':26,29 'and':2A,31 'die':4A 'guns':5B,17,20 'i':12C,25,28 'illusion':11C 'let':3A 'live':1A,27,30 'mbz':16,19 'n':6B,7B,14 'rock':32 'roses':8B,15,18,21,23 'unsorted':33 'use':9C,22,24 'your':10C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'hard rock', 'metal', 'rock']
                                        'tag_date'  1991
                                     'discogstags'  ['rock', 'rock & roll', 'hard rock', 'pop rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1620389821.536464  (2021-05-07 14:17:01)
                             'size'  2946828