======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '156'
                                          'artist'  'John Steel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "My Baby's Arms -6-1919"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['like a melody', 'irish', 'tenor', 'all', 'heavy metal']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '139.4'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '139.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         "My Baby's Arms -6-1919"
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '156000'
'TPE1' (Lead performer(s)/Soloist(s))               'John Steel'
'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'                                  'reggae'
'TXXX:lastfmtags'                                   ['like a melody', 'irish', 'tenor', 'all', 'heavy metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+1.81 dB'
'TXXX:replaygain_track_peak'                        '0.484337'

========================== row from database ==========================
                                              'id'  1513184
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1919/John Steel - My Baby_s Arms -6-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  156
                                           'genre'  prerock-unsorted
                                        'filesize'  3207125
                                           'mtime'  1621698477
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly Baby_s prerock unsorted
                                      'tag_artist'  John Steel
                                     'tag_release'  None
                                       'tag_title'  My Baby's Arms -6-1919
                                             'bpm'  139.4
                                    'search_title'  '1919':7 '6':6 '61919':8 'arms':5 'baby':2 'babys':4 'my':1 's':3
                                   'search_artist'  'john':1 'steel':2
                                  'search_release'  
                                     'search_rest'  'baby':2 'prerock':4 's':3 'unsorted':5 'veryearly':1
                                    'search_combo'  '1919':7A '6':6A '61919':8A 'arms':5A 'baby':2A,12 'babys':4A 'john':9B 'my':1A 'prerock':14 's':3A,13 'steel':10B 'unsorted':15 'veryearly':11
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['like a melody', 'irish', 'tenor', 'all', 'heavy metal']
                                        'tag_date'  1919
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1621698477.4442296  (2021-05-22 17:47:57)
                             'size'  3207125