======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '228'
                                          'artist'  'Champion Jack  Dupree'
                                     'text_people'  ''
                                         'release'  'Champion Jack  Dupree'
                                           'title'  'Birmingham'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '145.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Champion Jack  Dupree'
'TBPM' (BPM (beats per minute))                     '145.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Birmingham'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Champion Jack  Dupree'
'TPE2' (Band/orchestra/accompaniment)               'Champion Jack  Dupree'
'TXXX:MusicMagic Data'                              'AgEBWgeiiB6frqvKgkCjOFjGgAGCionwEpKovxJBgYX7B6vkkaknI7NogAHIQbW4gO2AAfKBwsXubIABgtW87A3+9QXNmcMPgAKAAaCYnamtQ4LT+SA+/YrlgwmGI/l5oPkxLYIJzcmEPoZbCC6ySq3k8JyL6YP2h7S5IL400watQ4AUuEQEHO59uluj64mGgI8='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.497234'

========================== row from database ==========================
                                              'id'  1495052
                                            'path'  /data/Music/Other/Pa/Blues/Champion Jack  Dupree/Birmingham.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  228
                                           'genre'  prerock-jb-blues
                                        'filesize'  4576533
                                           'mtime'  1621094224
                                   'redo_metaread'  0
                                        'rest_str'   Pa Blues prerock jb blues
                                      'tag_artist'  Champion Jack  Dupree
                                     'tag_release'  Champion Jack  Dupree
                                       'tag_title'  Birmingham
                                             'bpm'  145.0
                                    'search_title'  'birmingham':1
                                   'search_artist'  'champion':1 'dupree':3 'jack':2
                                  'search_release'  'champion':1 'dupree':3 'jack':2
                                     'search_rest'  'blues':2 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'birmingham':1A 'blues':9 'champion':2B,5C 'dupree':4B,7C 'jack':3B,6C 'jb':11 'pa':8 'prerock':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-3', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094223.5859807  (2021-05-15 17:57:03)
                             'size'  4576533