======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '40'
                                          'artist'  'Delta Zangvogels'
                                     'text_people'  ''
                                         'release'  'Deltas Gids voor Zangvogels'
                                           'title'  'Appelvink'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '77'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '125.704'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Deltas Gids voor Zangvogels'
'TBPM' (BPM (beats per minute))                     '125.704'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-fragments-sounds and sfx'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Appelvink'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Delta Zangvogels'
'TPE2' (Band/orchestra/accompaniment)               'Delta Zangvogels'
'TRCK' (Track number/Position in set)               '77'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-4.21 dB'
'TXXX:replaygain_track_peak'                        '0.951674'

========================== row from database ==========================
                                              'id'  944147
                                            'path'  /data/Music/Bulk/0nonmusic/00sounds/Zangvogels/Delta Zangvogels - Appelvink.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  40
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  982990
                                           'mtime'  1621696438
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00sounds nonmusic fragments sounds and sfx
                                      'tag_artist'  Delta Zangvogels
                                     'tag_release'  Deltas Gids voor Zangvogels
                                       'tag_title'  Appelvink
                                             'bpm'  125.704
                                    'search_title'  'appelvink':1
                                   'search_artist'  'delta':1 'zangvogels':2
                                  'search_release'  'deltas':1 'gids':2 'voor':3 'zangvogels':4
                                     'search_rest'  '00sounds':2 '0nonmusic':1 'and':6 'fragments':4 'nonmusic':3 'sfx':7 'sounds':5
                                    'search_combo'  '00sounds':9 '0nonmusic':8 'and':13 'appelvink':1A 'delta':2B 'deltas':4C 'fragments':11 'gids':5C 'nonmusic':10 'sfx':14 'sounds':12 'voor':6C 'zangvogels':3B,7C
                                    'tag_tracknum'  77
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696438.3365226  (2021-05-22 17:13:58)
                             'size'  982990