======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '204'
                                          'artist'  "Dave Kaplan's Melodists"
                                     'text_people'  ''
                                         'release'  'Golden Oldies 1923'
                                           'title'  'Sweet Butter 18-10-1923'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '107.151'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'Sound edited by Breda4@hotmail'
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Golden Oldies 1923'
'TBPM' (BPM (beats per minute))                     '107.151'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-o-dixiestyle', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1923'
'TIT2' (Title/songname/content description)         'Sweet Butter 18-10-1923'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '204000'
'TPE1' (Lead performer(s)/Soloist(s))               "Dave Kaplan's Melodists"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.587416'

========================== row from database ==========================
                                              'id'  1503953
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/GOLDEN OLDIES 1923/Dave Kaplan_s Melodists - Sweet Butter 18-10-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  204
                                           'genre'  prerock-jb-jazz-o-dixiestyle;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4186676
                                           'mtime'  1620529209
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country GOLDEN OLDIES Kaplan_s prerock jb jazz dixiestyle;set shirleyspinoza;set mor
                                      'tag_artist'  Dave Kaplan's Melodists
                                     'tag_release'  Golden Oldies 1923
                                       'tag_title'  Sweet Butter 18-10-1923
                                             'bpm'  107.151
                                    'search_title'  '10':4 '18':3 '18101923':6 '1923':5 'butter':2 'sweet':1
                                   'search_artist'  'dave':1 'kaplan':2 'kaplans':4 'melodists':5 's':3
                                  'search_release'  '1923':3 'golden':1 'oldies':2
                                     'search_rest'  'country':4 'dixiestyle':10,12 'exotica':2 'golden':5 'jazz':1 'jb':9 'kaplan':6 'mor':18 'oldies':3 'prerock':8 's':7 'set':11,13,15,17 'shirleyspinoza':14,16
                                    'search_combo'  '10':4A '18':3A '18101923':6A '1923':5A,14C 'butter':2A 'country':18 'dave':7B 'dixiestyle':24,26 'exotica':16 'golden':12C,19 'jazz':15 'jb':23 'kaplan':8B,20 'kaplans':10B 'melodists':11B 'mor':32 'oldies':13C,17 'prerock':22 's':9B,21 'set':25,27,29,31 'shirleyspinoza':28,30 'sweet':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1923
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529209.4478524  (2021-05-09 05:00:09)
                             'size'  4186676