======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '219'
                                          'artist'  'The Police'
                                     'text_people'  ''
                                         'release'  'The Very Best Of... Sting & th'
                                           'title'  'Fields of Gold'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'classic rock', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '103.855'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Very Best Of... Sting & th'
'TBPM' (BPM (beats per minute))                     '103.855'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Fields of Gold'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Police'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'classic rock', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.09 dB'
'TXXX:replaygain_track_peak'                        '0.751617'

========================== row from database ==========================
                                              'id'  1349055
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Police/MBZ;#The Police;#The Very Best Of Sting & the Police;#07;#Fields of Gold.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  219
                                           'genre'  rock-pop
                                        'filesize'  3519057
                                           'mtime'  1678465636
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#The Police;#The the Police;#07;#Fields rock pop
                                      'tag_artist'  The Police
                                     'tag_release'  The Very Best Of... Sting & th
                                       'tag_title'  Fields of Gold
                                             'bpm'  103.855
                                    'search_title'  'fields':1 'gold':3 'of':2
                                   'search_artist'  'police':2 'the':1
                                  'search_release'  'best':3 'of':4,5 'sting':6 'th':7 'the':1 'very':2
                                     'search_rest'  '00poprockelectronic':1 '07':12,15 'fields':13,16 'mbz':2,4 'police':6,8,11,14 'pop':18 'rock':17 'the':3,5,7,9,10
                                    'search_combo'  '00poprockelectronic':13 '07':24,27 'best':8C 'fields':1A,25,28 'gold':3A 'mbz':14,16 'of':2A,9C,10C 'police':5B,18,20,23,26 'pop':30 'rock':29 'sting':11C 'th':12C 'the':4B,6C,15,17,19,21,22 'very':7C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['80s', 'new wave', 'classic rock', 'pop', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678465635.7258487  (2023-03-10 17:27:15)
                             'size'  3519057