======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '170'
                                          'artist'  'Vivian Ellis'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'm On A See Saw"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'Q-PIANO-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['1307fh', 'entschleunigen', 'schellack-schatz', '1208fh', '----15fh']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '132.5'
                                             'key'  '6B'
                                        '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))                     '132.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1934-12-17'
'TIT2' (Title/songname/content description)         "I'm On A See Saw"
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '170000'
'TPE1' (Lead performer(s)/Soloist(s))               'Vivian Ellis'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1307fh', 'entschleunigen', 'schellack-schatz', '1208fh', '----15fh']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.21 dB'
'TXXX:replaygain_track_peak'                        '0.722477'

========================== row from database ==========================
                                              'id'  1508044
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Vivian Ellis - I_m On A See Saw 17-12-1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  170
                                           'genre'  prerock-unsorted
                                        'filesize'  3447937
                                           'mtime'  1620386196
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 I_m 17 12 1934 prerock unsorted
                                      'tag_artist'  Vivian Ellis
                                     'tag_release'  None
                                       'tag_title'  I'm On A See Saw
                                             'bpm'  132.5
                                    'search_title'  'a':5 'i':1 'im':3 'm':2 'on':4 'saw':7 'see':6
                                   'search_artist'  'ellis':2 'vivian':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'country':4 'exotica':2 'i':7 'jazz':1 'm':8 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':14 '1934':15 'a':5A 'country':13 'ellis':9B 'exotica':11 'i':1A,16 'im':3A 'jazz':10 'm':2A,17 'oldies':12 'on':4A 'prerock':18 'saw':7A 'see':6A 'unsorted':19 'vivian':8B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', '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-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1307fh', 'entschleunigen', 'schellack-schatz', '1208fh', '----15fh']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386196.2027235  (2021-05-07 13:16:36)
                             'size'  3447937