======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '159'
                                          'artist'  'king stitt & andy capp'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  'herbsman shuffle'
                                           '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-2', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['all', 'dub reggae', 'reggae', 'test', 'dj']"
                             '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'  '90.331'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '90.331'
'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)         'herbsman shuffle'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'king stitt & andy capp'
'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:lastfmtags'                                   ['all', 'dub reggae', 'reggae', 'test', 'dj']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.312606'

========================== row from database ==========================
                                              'id'  985570
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/king stitt & andy capp - herbsman shuffle (1969) (= clandisc027).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  159
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  1912365
                                           'mtime'  1620524213
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles (1969) (= clandisc027) loc style reggae or dub or ska or dancehall dub roots reggae
                                      'tag_artist'  king stitt & andy capp
                                     'tag_release'  Reggae Singles
                                       'tag_title'  herbsman shuffle
                                             'bpm'  90.331
                                    'search_title'  'herbsman':1 'shuffle':2
                                   'search_artist'  'andy':3 'capp':4 'king':1 'stitt':2
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '1969':3,4 'clandisc027':5,6 'dancehall':12 'dub':10 'loc':7 'or':9 'reggae':1 'roots':13 'singles':2 'ska':11 'style':8
                                    'search_combo'  '1969':11,12 'andy':5B 'capp':6B 'clandisc027':13,14 'dancehall':20 'dub':18 'herbsman':1A 'king':3B 'loc':15 'or':17 'reggae':7C,9 'roots':21 'shuffle':2A 'singles':8C,10 'ska':19 'stitt':4B 'style':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['all', 'dub reggae', 'reggae', 'test', 'dj']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524212.5137258  (2021-05-09 03:36:52)
                             'size'  1912365