======================== unified (from filesystem) ========================
                                         'bitrate'  '132.978'
                                        'duration'  '98'
                                          'artist'  'Amon Duul II'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock & Guitar'
                                           'title'  'The Return of Ruebezahl'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  ("['krautrock', 'progressive rock', 'psychedelic', 'psychedelic rock', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '123.0'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock & Guitar'
'TBPM' (BPM (beats per minute))                     '123.0'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'The Return of Ruebezahl'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Amon Duul II'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['krautrock',
 'progressive rock',
 'psychedelic',
 'psychedelic rock',
 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.18 dB'
'TXXX:replaygain_track_peak'                        '0.614674'
'TXXX:youtube'                                      'Sg67exWYxYw'

========================== row from database ==========================
                                              'id'  1477403
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockGuitar/Amon Duul II - The Return of Ruebezahl-Sg67exWYxYw.mp3
                                         'working'  None
                                         'bitrate'  132
                                    'duration_sec'  98
                                           'genre'  ifs-songwriter
                                        'filesize'  1633751
                                           'mtime'  1637330695
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockGuitar Sg67exWYxYw ifs songwriter
                                      'tag_artist'  Amon Duul II
                                     'tag_release'  Dimitri - Folk, Rock & Guitar
                                       'tag_title'  The Return of Ruebezahl
                                             'bpm'  123.0
                                    'search_title'  'of':3 'return':2 'ruebezahl':4 'the':1
                                   'search_artist'  'amon':1 'duul':2 'ii':3
                                  'search_release'  'dimitri':1 'folk':2,3 'guitar':5 'rock':4
                                     'search_rest'  'folk':5 'folkrockguitar':1 'guitar':7 'ifs':3 'rock':6 'sg67ex':8 'sg67exwyxyw':2 'songwriter':4 'wyx':9 'yw':10
                                    'search_combo'  'amon':5B 'dimitri':8C 'duul':6B 'folk':9C,10C,17 'folkrockguitar':13 'guitar':12C,19 'ifs':15 'ii':7B 'of':3A 'return':2A 'rock':11C,18 'ruebezahl':4A 'sg67ex':20 'sg67exwyxyw':14 'songwriter':16 'the':1A 'wyx':21 'yw':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['krautrock', 'progressive rock', 'psychedelic', 'psychedelic rock', 'experimental']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330695.212074  (2021-11-19 15:04:55)
                             'size'  1633751