======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '181'
                                          'artist'  'The Staple Singers'
                                     'text_people'  'Roebuck "Pops" Staples'
                                         'release'  'Uncloudy Day / Will the Circle Be Unbroken'
                                           'title'  'Uncloudy Day'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '22'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'funk or soul-soul'
                                             'bpm'  '120.399'
                                             'key'  '7A'
                                        'acoustid'  '8d63806d-2367-424d-9803-8affd26d7f4e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'Uncloudy Day / Will the Circle Be Unbroken'
'TBPM' (BPM (beats per minute))                     '120.399'
'TCOM' (Composer)                                   'Roebuck "Pops" Staples'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-soul'
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Uncloudy Day'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Staple Singers'
'TPE2' (Band/orchestra/accompaniment)               'The Staple Singers'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Vee-Jay Records'
'TRCK' (Track number/Position in set)               '1/22'
'TSO2'                                              'Staple Singers, The'
'TSOP' (Performer sort order)                       'Staple Singers, The'
'TXXX:Acoustid Id'                                  '8d63806d-2367-424d-9803-8affd26d7f4e'
'TXXX:Artists'                                      'The Staple Singers'
'TXXX:CATALOGNUMBER'                                'NVG2-600'
'TXXX:MusicBrainz Album Artist Id'                  '3d49e36a-cc9e-411e-93c6-d1646ba5bd3a'
'TXXX:MusicBrainz Album Id'                         '454c4842-bea0-488d-9e33-01752ddb19a8'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '3d49e36a-cc9e-411e-93c6-d1646ba5bd3a'
'TXXX:MusicBrainz Release Group Id'                 'a645e466-ebe0-4c9f-a26e-c005c221ed3b'
'TXXX:MusicBrainz Release Track Id'                 '1291e6a0-bd19-4235-9f81-73b95f59eb53'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']
'TXXX:originalyear'                                 '2007'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.49 dB'
'TXXX:replaygain_track_peak'                        '0.496109'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c5cc971d-d125-43c1-8b90-0760b40c0c69')

========================== row from database ==========================
                                              'id'  1389919
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/the staple singers - uncloudy day & will the circle be unbroken/01 - uncloudy day.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  181
                                           'genre'  funk or soul-soul
                                        'filesize'  4431770
                                           'mtime'  1620526972
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul staple singers uncloudy day & will circle be unbroken 01 uncloudy day funk or soul soul
                                      'tag_artist'  The Staple Singers
                                     'tag_release'  Uncloudy Day / Will the Circle Be Unbroken
                                       'tag_title'  Uncloudy Day
                                             'bpm'  120.399
                                    'search_title'  'day':2 'uncloudy':1
                                   'search_artist'  'singers':3 'staple':2 'the':1
                                  'search_release'  'be':6 'circle':5 'day':2 'the':4 'unbroken':7 'uncloudy':1 'will':3
                                     'search_rest'  'be':10 'circle':9 'day':7 'funk':2 'or':12 'singers':5 'soul':3 'staple':4 'swing':1 'unbroken':11 'uncloudy':6 'will':8
                                    'search_combo'  'be':11C,22 'circle':10C,21 'day':2A,7C,19 'funk':14 'or':24 'singers':5B,17 'soul':15 'staple':4B,16 'swing':13 'the':3B,9C 'unbroken':12C,23 'uncloudy':1A,6C,18 'will':8C,20
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'stax', '70s', 'gospel', 'rhythm and blues', 'funk']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526971.8472097  (2021-05-09 04:22:51)
                             'size'  4431770