======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '466'
                                          'artist'  'Corvus Corax'
                                     'text_people'  ''
                                         'release'  'Seikilos'
                                           'title'  'Hymnus Apollon'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['mittelalter', 'folk metal', 'german', 'medieval', 'folk']"
                                     'discogstags'  "['electronic', 'modern classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-folk'
                                             'bpm'  '92.899'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Seikilos'
'TBPM' (BPM (beats per minute))                     '92.899'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-folk'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Hymnus Apollon'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Corvus Corax'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'modern classical']
'TXXX:lastfmtags'                                   ['mittelalter', 'folk metal', 'german', 'medieval', 'folk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.93 dB'
'TXXX:replaygain_track_peak'                        '0.730091'

========================== row from database ==========================
                                              'id'  1401963
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Corvus Corax/Corvus Corax - Seikilos - 12 - Hymnus Apollon.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  466
                                           'genre'  eid-metal-folk
                                        'filesize'  11196939
                                           'mtime'  1620301646
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 12 eid metal folk
                                      'tag_artist'  Corvus Corax
                                     'tag_release'  Seikilos
                                       'tag_title'  Hymnus Apollon
                                             'bpm'  92.899
                                    'search_title'  'apollon':2 'hymnus':1
                                   'search_artist'  'corax':2 'corvus':1
                                  'search_release'  'seikilos':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'folk':5 'metal':4
                                    'search_combo'  '00dwimp':6 '00metal':7 'apollon':2A 'corax':4B 'corvus':3B 'eid':8 'folk':10 'hymnus':1A 'metal':9 'seikilos':5C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['mittelalter', 'folk metal', 'german', 'medieval', 'folk']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'modern classical']

============================== file details ==============================
                                           'mtime'  1620301646.1330118  (2021-05-06 13:47:26)
                             'size'  11196939