======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '179'
                                          'artist'  'Joseph Spence'
                                     'text_people'  ''
                                         'release'  'Bahamian Guitarist'
                                           'title'  "The Lord's My Shepherd"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['11', 'blues', 'gospel', 'folk', 'fingerstyle']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '21'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-islands-bahamas'
                                             'bpm'  '102.644'
                                             'key'  '1A'
                                        'acoustid'  '52471427-16f6-4f1c-98c5-ba747f440c60'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000001A6 00000031 00003B58'
'COMM:iTunNORM:eng'                                 (' 000001A6 00000031 00003B58 00001B58 0001CA78 0001CA92 0000722D 0000780D '
 '00026887 00026887')
'TALB' (Album/Movie/Show title)                     'Bahamian Guitarist'
'TBPM' (BPM (beats per minute))                     '102.644'
'TCON' (Content type, a.k.a. Genre)                 'loc-islands-bahamas'
'TDOR' (Original release time)                      '1972'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         "The Lord's My Shepherd"
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Joseph Spence'
'TPE2' (Band/orchestra/accompaniment)               'Joseph Spence'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Arhoolie'
'TRCK' (Track number/Position in set)               '17/21'
'TSO2'                                              'Spence, Joseph'
'TSOP' (Performer sort order)                       'Spence, Joseph'
'TXXX:Acoustid Id'                                  '52471427-16f6-4f1c-98c5-ba747f440c60'
'TXXX:Artists'                                      'Joseph Spence'
'TXXX:BARCODE'                                      '096297034927'
'TXXX:CATALOGNUMBER'                                'CD-349'
'TXXX:MusicBrainz Album Artist Id'                  'c18b1dcf-02d4-4d7e-a6c6-dc66873958f1'
'TXXX:MusicBrainz Album Id'                         '1649294d-1c0f-4f84-b5bf-65c54fa90966'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c18b1dcf-02d4-4d7e-a6c6-dc66873958f1'
'TXXX:MusicBrainz Release Group Id'                 '57c79dca-fbb1-30be-a48f-b229cf421916'
'TXXX:MusicBrainz Release Track Id'                 'a22b5357-1811-3b3f-9ebb-853adbc7201a'
'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:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['11', 'blues', 'gospel', 'folk', 'fingerstyle']
'TXXX:originalyear'                                 '1972'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+4.60 dB'
'TXXX:replaygain_track_peak'                        '0.922463'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'706195aa-0d66-438c-a6eb-bc8a52a133a3')

========================== row from database ==========================
                                              'id'  1513715
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Bahamian Guitarist/17 The lord_s my shepard.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  179
                                           'genre'  loc-islands-bahamas
                                        'filesize'  2953893
                                           'mtime'  1620534934
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 17 lord_s my shepard loc islands bahamas
                                      'tag_artist'  Joseph Spence
                                     'tag_release'  Bahamian Guitarist
                                       'tag_title'  The Lord's My Shepherd
                                             'bpm'  102.644
                                    'search_title'  'lord':2 'lords':4 'my':5 's':3 'shepherd':6 'the':1
                                   'search_artist'  'joseph':1 'spence':2
                                  'search_release'  'bahamian':1 'guitarist':2
                                     'search_rest'  'bahamas':11 'country':4 'exotica':2 'islands':10 'jazz':1 'loc':9 'lord':5 'my':7 'oldies':3 's':6 'shepard':8
                                    'search_combo'  'bahamas':21 'bahamian':9C 'country':14 'exotica':12 'guitarist':10C 'islands':20 'jazz':11 'joseph':7B 'loc':19 'lord':2A,15 'lords':4A 'my':5A,17 'oldies':13 's':3A,16 'shepard':18 'shepherd':6A 'spence':8B 'the':1A
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  1A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['11', 'blues', 'gospel', 'folk', 'fingerstyle']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534934.4646053  (2021-05-09 06:35:34)
                             'size'  2953893