======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '271'
                                          'artist'  'Chuscales'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Gloria Bendita'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', '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-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['flamenco', 'guitar', 'flamenco guitar', 'spanish guitar', 'acoustic']"
                                     'discogstags'  "['flamenco', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'loc-style-flamenco'
                                             'bpm'  '130.482'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.482'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-flamenco'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Gloria Bendita'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '271600'
'TPE1' (Lead performer(s)/Soloist(s))               'Chuscales'
'TPE2' (Band/orchestra/accompaniment)               'Chuscales'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['flamenco', 'latin']
'TXXX:lastfmtags'                                   ['flamenco', 'guitar', 'flamenco guitar', 'spanish guitar', 'acoustic']
'TXXX:q-bass'                                       '4'
'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'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.618688'

========================== row from database ==========================
                                              'id'  1491866
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Chuscales - Gloria Bendita [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  271
                                           'genre'  loc-style-flamenco
                                        'filesize'  6524928
                                           'mtime'  1636914167
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch [] loc style flamenco
                                      'tag_artist'  Chuscales
                                     'tag_release'  None
                                       'tag_title'  Gloria Bendita
                                             'bpm'  130.482
                                    'search_title'  'bendita':2 'gloria':1
                                   'search_artist'  'chuscales':1
                                  'search_release'  
                                     'search_rest'  '00dutch':4 '00mid':1 'europe':3 'flamenco':7 'loc':5 'north':2 'style':6
                                    'search_combo'  '00dutch':7 '00mid':4 'bendita':2A 'chuscales':3B 'europe':6 'flamenco':10 'gloria':1A 'loc':8 'north':5 'style':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['flamenco', 'guitar', 'flamenco guitar', 'spanish guitar', 'acoustic']
                                        'tag_date'  2008
                                     'discogstags'  ['flamenco', 'latin']

============================== file details ==============================
                                           'mtime'  1636914166.52602  (2021-11-14 19:22:46)
                             'size'  6524928