======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '202'
                                          'artist'  'Marek Weber'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Schlaf Mein Liebling (Goodnight Sweetheart) (vocal - Comedian Harmonists)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['romance', 'schellack schatz', 'oldies', 'tango', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.8'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1932-01-08'
'TIT2' (Title/songname/content description)         'Schlaf Mein Liebling (Goodnight Sweetheart) (vocal - Comedian Harmonists)'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '202000'
'TPE1' (Lead performer(s)/Soloist(s))               'Marek Weber'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['romance', 'schellack schatz', 'oldies', 'tango', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.30 dB'
'TXXX:replaygain_track_peak'                        '0.542787'

========================== row from database ==========================
                                              'id'  1467186
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1932/Marek Weber - Schlaf Mein Liebling (Good Night Sweetheart) (vocal - Comedian Harmonists) 8-1-1932.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  202
                                           'genre'  prerock-unsorted
                                        'filesize'  4088416
                                           'mtime'  1621697948
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1932 Night 8 1 1932 prerock unsorted
                                      'tag_artist'  Marek Weber
                                     'tag_release'  None
                                       'tag_title'  Schlaf Mein Liebling (Goodnight Sweetheart) (vocal - Comedian Harmonists)
                                             'bpm'  145.8
                                    'search_title'  'comedian':10 'goodnight':4,5 'harmonists':11,12 'liebling':3 'mein':2 'schlaf':1 'sweetheart':6,7 'vocal':8,9
                                   'search_artist'  'marek':1 'weber':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1':9 '1932':6 '8':8 'country':4 'exotica':2 'jazz':1 'night':7 'oldies':3 'prerock':10 'unsorted':11
                                    'search_combo'  '00oldiepop':19 '1':23 '1932':20 '8':22 'comedian':10A 'country':18 'exotica':16 'goodnight':4A,5A 'harmonists':11A,12A 'jazz':15 'liebling':3A 'marek':13B 'mein':2A 'night':21 'oldies':17 'prerock':24 'schlaf':1A 'sweetheart':6A,7A 'unsorted':25 'vocal':8A,9A 'weber':14B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['romance', 'schellack schatz', 'oldies', 'tango', 'swing']
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697948.3564918  (2021-05-22 17:39:08)
                             'size'  4088416