======================== unified (from filesystem) ========================
                                         'bitrate'  '189.04'
                                        'duration'  '190'
                                          'artist'  'Krypteria'
                                     'text_people'  ''
                                         'release'  'Liberatio'
                                           'title'  'Gaudium et felicitas'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['power metal', 'female fronted metal', 'symphonic metal', 'female "
 "vocalists', 'gothic metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic;eid-metal-symphonic'
                                             'bpm'  '145.580'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Liberatio'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-doom or gothic', 'eid-metal-symphonic']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Gaudium et felicitas'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Krypteria'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['power metal',
 'female fronted metal',
 'symphonic metal',
 'female vocalists',
 'gothic metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.669219'

========================== row from database ==========================
                                              'id'  137605
                                            'path'  /data/Music/Bulk/00dwimp/Krypteria/Krypteria - Liberatio - 03 - Gaudium et felicitas.mp3
                                         'working'  None
                                         'bitrate'  189
                                    'duration_sec'  190
                                           'genre'  eid-metal-doom or gothic;eid-metal-symphonic
                                        'filesize'  4506426
                                           'mtime'  1620310338
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 03 eid metal doom or gothic;eid metal symphonic
                                      'tag_artist'  Krypteria
                                     'tag_release'  Liberatio
                                       'tag_title'  Gaudium et felicitas
                                             'bpm'  145.58
                                    'search_title'  'et':2 'felicitas':3 'gaudium':1
                                   'search_artist'  'krypteria':1
                                  'search_release'  'liberatio':1
                                     'search_rest'  '00dwimp':1 'doom':4 'eid':2,7,9 'gothic':6,8 'metal':3 'or':5 'symphonic':10
                                    'search_combo'  '00dwimp':6 'doom':9 'eid':7,12,14 'et':2A 'felicitas':3A 'gaudium':1A 'gothic':11,13 'krypteria':4B 'liberatio':5C 'metal':8 'or':10 'symphonic':15
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['power metal', 'female fronted metal', 'symphonic metal', 'female vocalists', 'gothic metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310337.6757896  (2021-05-06 16:12:17)
                             'size'  4506426