======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '120'
                                          'artist'  'Marsel Azzola'
                                     'text_people'  'M.Azzola, L.Peguri'
                                         'release'  '@jjnpdenmhqr'
                                           'title'  'Mazurka des champions'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['accordion', 'accordeon']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'mi-accordeon'
                                             'bpm'  '136.001'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '@jjnpdenmhqr'
'TBPM' (BPM (beats per minute))                     '136.001'
'TCOM' (Composer)                                   'M.Azzola, L.Peguri'
'TCON' (Content type, a.k.a. Genre)                 'mi-accordeon'
'TIT2' (Title/songname/content description)         'Mazurka des champions'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Marsel Azzola'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['accordion', 'accordeon']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.91 dB'
'TXXX:replaygain_track_peak'                        '0.315951'

========================== row from database ==========================
                                              'id'  331589
                                            'path'  /data/Music/Bulk/00localcharacter/Akkordeonist/Marsel Azzola - Mazurka des champions.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  120
                                           'genre'  mi-accordeon
                                        'filesize'  2900731
                                           'mtime'  1620528298
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Akkordeonist mi accordeon
                                      'tag_artist'  Marsel Azzola
                                     'tag_release'  @jjnpdenmhqr
                                       'tag_title'  Mazurka des champions
                                             'bpm'  136.001
                                    'search_title'  'champions':3 'des':2 'mazurka':1
                                   'search_artist'  'azzola':2 'marsel':1
                                  'search_release'  'jjnpdenmhqr':1
                                     'search_rest'  'accordeon':3 'akkordeonist':1 'mi':2
                                    'search_combo'  'accordeon':9 'akkordeonist':7 'azzola':5B 'champions':3A 'des':2A 'jjnpdenmhqr':6C 'marsel':4B 'mazurka':1A 'mi':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['accordion', 'accordeon']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528298.4628081  (2021-05-09 04:44:58)
                             'size'  2900731