======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '129'
                                          'artist'  'Lawrence Welk & The McGuire Sisters'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'In The Alps (In Der Schweiz)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '347'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '104.336'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '104.336'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Sicherer Modus)'
'TIT2' (Title/songname/content description)         'In The Alps (In Der Schweiz)'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lawrence Welk & The McGuire Sisters'
'TRCK' (Track number/Position in set)               '347'
'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:q-bass'                                       '3'
'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-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.20 dB'
'TXXX:replaygain_track_peak'                        '0.444523'

========================== row from database ==========================
                                              'id'  1449745
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-347 - Lawrence Welk & The McGuire Sisters - In The Alps (In Der Schweiz).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  129
                                           'genre'  prerock-unsorted
                                        'filesize'  5347040
                                           'mtime'  1621698274
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 347 prerock unsorted
                                      'tag_artist'  Lawrence Welk & The McGuire Sisters
                                     'tag_release'  None
                                       'tag_title'  In The Alps (In Der Schweiz)
                                             'bpm'  104.336
                                    'search_title'  'alps':3 'der':5 'in':1,4 'schweiz':6,7 'the':2
                                   'search_artist'  'guire':7 'lawrence':1 'mc':6 'mcguire':4 'sisters':5 'the':3 'welk':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1956':6 '347':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':19 '1956':20 '347':21 'alps':3A 'country':18 'der':5A 'exotica':16 'guire':14B 'in':1A,4A 'jazz':15 'lawrence':8B 'mc':13B 'mcguire':11B 'oldies':17 'prerock':22 'schweiz':6A,7A 'sisters':12B 'the':2A,10B 'unsorted':23 'welk':9B
                                    'tag_tracknum'  347
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698273.7785914  (2021-05-22 17:44:33)
                             'size'  5347040