======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '162'
                                          'artist'  'gus viseur'
                                     'text_people'  ''
                                         'release'  'Cafe de Paris - 24 Accordion Classics (1930-1941)'
                                           'title'  'swing 39'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['accordez accordeons', 'accordeon', 'french', 'accordion']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'loc-eur-france;mi-accordeon'
                                             'bpm'  '109.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Cafe de Paris - 24 Accordion Classics (1930-1941)'
'TBPM' (BPM (beats per minute))                     '109.2'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-france', 'mi-accordeon']
'TDRC' (Recording time)                             '1930-41'
'TIT2' (Title/songname/content description)         'swing 39'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'gus viseur'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['accordez accordeons', 'accordeon', 'french', 'accordion']
'TXXX:other'                                        '19'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+1.47 dB'
'TXXX:replaygain_track_peak'                        '0.592650'

========================== row from database ==========================
                                              'id'  1118935
                                            'path'  /data/Music/Bulk/00instruments-classical/24 Accordion Classics (1930-1941)/19 swing 39 - gus viseur.mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  162
                                           'genre'  loc-eur-france;mi-accordeon
                                        'filesize'  2364348
                                           'mtime'  1620528225
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical loc france;mi accordeon
                                      'tag_artist'  gus viseur
                                     'tag_release'  Cafe de Paris - 24 Accordion Classics (1930-1941)
                                       'tag_title'  swing 39
                                             'bpm'  109.2
                                    'search_title'  '39':2 'swing':1
                                   'search_artist'  'gus':1 'viseur':2
                                  'search_release'  '1930':7 '19301941':9 '1941':8 '24':4 'accordion':5 'cafe':1 'classics':6 'de':2 'paris':3
                                     'search_rest'  '00instruments':1 'accordeon':8 'classical':2 'france':4,6 'loc':3 'mi':5,7
                                    'search_combo'  '00instruments':14 '1930':11C '19301941':13C '1941':12C '24':8C '39':2A 'accordeon':21 'accordion':9C 'cafe':5C 'classical':15 'classics':10C 'de':6C 'france':17,19 'gus':3B 'loc':16 'mi':18,20 'paris':7C 'swing':1A 'viseur':4B
                                    'tag_tracknum'  19
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['accordez accordeons', 'accordeon', 'french', 'accordion']
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528225.1558948  (2021-05-09 04:43:45)
                             'size'  2364348