======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '251'
                                          'artist'  'Various'
                                     'text_people'  ''
                                         'release'  'Janets Novelty JB'
                                           'title'  'Vo-do-do-de-o blues'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-2', 'q-vocals-3', 'Q-HAP-3', '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'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-dixiestyle'
                                             'bpm'  '100.3'
                                             'key'  'A#m'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_TrackNumber:eng'                  '4'
'TALB' (Album/Movie/Show title)                     'Janets Novelty JB'
'TBPM' (BPM (beats per minute))                     '100.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-dixiestyle'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Vo-do-do-de-o blues'
'TKEY' (Initial key)                                'A#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Vo'
'TPE2' (Band/orchestra/accompaniment)               'Various'
'TRCK' (Track number/Position in set)               '4'
'TXXX:MusicMagic Data'                              'AQEBWov2gqyT68PZgupBrDDIiWuCeIB18VOe1w68hcjk3YABiNUGBLVNgAHq+qT7iYSkk9fqxu3Cr4ABgAHiPvWj4VC23LzdgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'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'                                      '4'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.334347'

========================== row from database ==========================
                                              'id'  1495061
                                            'path'  /data/Music/Other/Pa/Dixieland/Janet's Novelty JB/Vo-do-do-de-o blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  251
                                           'genre'  prerock-jb-jazz-dixiestyle
                                        'filesize'  5036716
                                           'mtime'  1621094200
                                   'redo_metaread'  0
                                        'rest_str'   Pa Dixieland Janet's prerock jb jazz dixiestyle
                                      'tag_artist'  Various
                                     'tag_release'  Janets Novelty JB
                                       'tag_title'  Vo-do-do-de-o blues
                                             'bpm'  100.3
                                    'search_title'  'blues':7 'de':4 'do':2,3 'o':5 'vo':1 'vodododeo':6
                                   'search_artist'  'various':1
                                  'search_release'  'janets':1 'jb':3 'novelty':2
                                     'search_rest'  'dixieland':2 'dixiestyle':9 'janet':3 'janets':5 'jazz':8 'jb':7 'pa':1 'prerock':6 's':4
                                    'search_combo'  'blues':7A 'de':4A 'dixieland':13 'dixiestyle':20 'do':2A,3A 'janet':14 'janets':9C,16 'jazz':19 'jb':11C,18 'novelty':10C 'o':5A 'pa':12 'prerock':17 's':15 'various':8B 'vo':1A 'vodododeo':6A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  A#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-2', '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-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094199.8059375  (2021-05-15 17:56:39)
                             'size'  5036716