======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '181'
                                          'artist'  'Muddy Waters'
                                     'text_people'  ''
                                         'release'  '18 Tracks from the Film Chicago Blues'
                                           'title'  'Hoochie Coochie Man'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '140.823'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '18 Tracks from the Film Chicago Blues'
'TBPM' (BPM (beats per minute))                     '140.823'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TIT2' (Title/songname/content description)         'Hoochie Coochie Man'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Muddy Waters'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.779520'

========================== row from database ==========================
                                              'id'  675386
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Muddy Waters/MBZ;#Muddy Waters;#18 Tracks from the Film Chicago Blues;#02;#Hoochie Coochie Man.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  181
                                           'genre'  prerock-jb-blues
                                        'filesize'  2538270
                                           'mtime'  1620402443
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country MBZ;#Muddy Waters;#18 Blues;#02;#Hoochie prerock jb blues
                                      'tag_artist'  Muddy Waters
                                     'tag_release'  18 Tracks from the Film Chicago Blues
                                       'tag_title'  Hoochie Coochie Man
                                             'bpm'  140.823
                                    'search_title'  'coochie':2 'hoochie':1 'man':3
                                   'search_artist'  'muddy':1 'waters':2
                                  'search_release'  '18':1 'blues':7 'chicago':6 'film':5 'from':3 'the':4 'tracks':2
                                     'search_rest'  '02':14,17 '18':10,12 'blues':13,16,21 'country':4 'exotica':2 'hoochie':15,18 'jazz':1 'jb':20 'mbz':5,7 'muddy':6,8 'oldies':3 'prerock':19 'waters':9,11
                                    'search_combo'  '02':26,29 '18':6C,22,24 'blues':12C,25,28,33 'chicago':11C 'coochie':2A 'country':16 'exotica':14 'film':10C 'from':8C 'hoochie':1A,27,30 'jazz':13 'jb':32 'man':3A 'mbz':17,19 'muddy':4B,18,20 'oldies':15 'prerock':31 'the':9C 'tracks':7C 'waters':5B,21,23
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['delta blues', 'guitar', 'blues', 'chicago blues', 'classic blues']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402442.9748614  (2021-05-07 17:47:22)
                             'size'  2538270