======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '317'
                                          'artist'  'Estampie'
                                     'text_people'  ''
                                         'release'  'Ondas'
                                           'title'  'Disse Mi'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['medieval', 'mittelalter', 'medieval folk', 'german', 'ethereal', 'folk']"
                                     'discogstags'  "['electronic', 'rock', 'classical', 'modern classical', 'medieval']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '11'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-folk-classical'
                                             'bpm'  '85.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ondas'
'TBPM' (BPM (beats per minute))                     '85.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-folk-classical'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Disse Mi'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Estampie'
'TRCK' (Track number/Position in set)               '2/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'classical', 'modern classical', 'medieval']
'TXXX:lastfmtags'                                   ['medieval', 'mittelalter', 'medieval folk', 'german', 'ethereal', 'folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+11.89 dB'
'TXXX:replaygain_track_peak'                        '0.125932'

========================== row from database ==========================
                                              'id'  349844
                                            'path'  /data/Music/Bulk/00instruments-classical/Estampie/2000 - Ondas/02. Disse Mi.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  317
                                           'genre'  ifs-folk-classical
                                        'filesize'  12692516
                                           'mtime'  1622757762
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 2000 02. ifs folk classical
                                      'tag_artist'  Estampie
                                     'tag_release'  Ondas
                                       'tag_title'  Disse Mi
                                             'bpm'  85.1
                                    'search_title'  'disse':1 'mi':2
                                   'search_artist'  'estampie':1
                                  'search_release'  'ondas':1
                                     'search_rest'  '00instruments':1 '02':4,5 '2000':3 'classical':2 'folk':7 'ifs':6
                                    'search_combo'  '00instruments':5 '02':8,9 '2000':7 'classical':6 'disse':1A 'estampie':3B 'folk':11 'ifs':10 'mi':2A 'ondas':4C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['medieval', 'mittelalter', 'medieval folk', 'german', 'ethereal', 'folk']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic', 'rock', 'classical', 'modern classical', 'medieval']

============================== file details ==============================
                                           'mtime'  1622757761.954916  (2021-06-04 00:02:41)
                             'size'  12692516