======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '173'
                                          'artist'  '101 Strings Orchestra'
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                                         'release'  'Ballroom Under the Stars'
                                           'title'  'Irene at the Mambo Club'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
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                                      'lastfmtags'  "['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '10'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '95.9'
                                             'key'  '9B'
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rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ballroom Under the Stars'
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'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Irene at the Mambo Club'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings Orchestra'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings Orchestra'
'TPOS' (Part of a set)                              '1/3'
'TPUB' (Publisher)                                  'Madacy Special Products'
'TRCK' (Track number/Position in set)               '4/10'
'TSO2'                                              '101 Strings'
'TSOP' (Performer sort order)                       '101 Strings'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.4 (http://www.mp3dev.org/)'
'TXXX:ASIN'                                         'B000UFAUU0'
'TXXX:Acoustid Id'                                  '9aa0cb1c-d5c3-4462-b61a-f58504ffdfbd'
'TXXX:Artists'                                      '101 Strings Orchestra'
'TXXX:BARCODE'                                      '628261345724'
'TXXX:CATALOGNUMBER'                                'TCD2-53457'
'TXXX:MusicBrainz Album Artist Id'                  '5c176092-cb4d-4e05-806b-1e9414f2b28c'
'TXXX:MusicBrainz Album Id'                         '648491dc-7b01-455b-8c39-b0d5eef75235'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5c176092-cb4d-4e05-806b-1e9414f2b28c'
'TXXX:MusicBrainz Release Group Id'                 '1ac05a45-5513-407d-9481-21ad334ef59d'
'TXXX:MusicBrainz Release Track Id'                 'fcc03473-8475-312c-9512-0f67af3d87c4'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.494924'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'15c9c176-8eff-49c4-a570-5253a963219f')

========================== row from database ==========================
                                              'id'  1479102
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/2007 - Ballroom Under The Stars [3CD]/CD1/04 - Irene At The Mambo Club.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  173
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  2830754
                                           'mtime'  1621705512
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 2007 The [3CD] CD1 04 At The electronic generic or radio easy listening
                                      'tag_artist'  101 Strings Orchestra
                                     'tag_release'  Ballroom Under the Stars
                                       'tag_title'  Irene at the Mambo Club
                                             'bpm'  95.9
                                    'search_title'  'at':2 'club':5 'irene':1 'mambo':4 'the':3
                                   'search_artist'  '101':1 'orchestra':3 'strings':2
                                  'search_release'  'ballroom':1 'stars':4 'the':3 'under':2
                                     'search_rest'  '2007':5 '3cd':7,8 'at':10 'cd1':9 'country':4 'easy':15 'electronic':11 'exotica':2 'generic':12 'jazz':1 'listening':16 'oldies':3 'or':13 'radio':14 'the':6
                                    'search_combo'  '101':6B '2007':17 '3cd':19,20 'at':2A,22 'ballroom':9C 'cd1':21 'club':5A 'country':16 'easy':27 'electronic':23 'exotica':14 'generic':24 'irene':1A 'jazz':13 'listening':28 'mambo':4A 'oldies':15 'or':25 'orchestra':8B 'radio':26 'stars':12C 'strings':7B 'the':3A,11C,18 'under':10C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705511.7633517  (2021-05-22 19:45:11)
                             'size'  2830754