======================== unified (from filesystem) ========================
                                         'bitrate'  '83.117'
                                        'duration'  '163'
                                          'artist'  'The Blue Bells'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  'Call Me Teacher [LOCKS ~ 1976]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae']"
                                     'discogstags'  "['surf', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '138.323'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '138.323'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TIT2' (Title/songname/content description)         'Call Me Teacher [LOCKS ~ 1976]'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Blue Bells'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['surf', 'rock']
'TXXX:lastfmtags'                                   'reggae'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.69 dB'
'TXXX:replaygain_track_peak'                        '0.702075'

========================== row from database ==========================
                                              'id'  985253
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/The Blue Bells - Call Me Teacher [LOCKS ~ 1976].mp3
                                         'working'  None
                                         'bitrate'  83
                                    'duration_sec'  163
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  1696740
                                           'mtime'  1620524044
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  The Blue Bells
                                     'tag_release'  Reggae Singles
                                       'tag_title'  Call Me Teacher [LOCKS ~ 1976]
                                             'bpm'  138.323
                                    'search_title'  '1976':6,7 'call':1 'locks':4,5 'me':2 'teacher':3
                                   'search_artist'  'bells':3 'blue':2 'the':1
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  'and':10 'dancehall':8 'dub':6 'loc':3 'or':5 'reggae':1 'roots':9 'singles':2 'ska':7 'style':4
                                    'search_combo'  '1976':6A,7A 'and':22 'bells':10B 'blue':9B 'call':1A 'dancehall':20 'dub':18 'loc':15 'locks':4A,5A 'me':2A 'or':17 'reggae':11C,13 'roots':21 'singles':12C,14 'ska':19 'style':16 'teacher':3A 'the':8B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae']
                                        'tag_date'  
                                     'discogstags'  ['surf', 'rock']

============================== file details ==============================
                                           'mtime'  1620524043.8023715  (2021-05-09 03:34:03)
                             'size'  1696740