======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '190'
                                          'artist'  '101 Strings'
                                     'text_people'  ''
                                         'release'  'A Bridal Bouquet'
                                           'title'  'Reception Waltz'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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 "'q-bass-1', 'q-play-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3']")
                                      'lastfmtags'  "['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']"
                                     'discogstags'  "['easy listening', 'jazz', 'pop', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '9'
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '131.3'
                                             'key'  '7B'
                                        'acoustid'  '3ff0eb9a-4f82-49e5-9d48-d2c7bd4056ac'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A Bridal Bouquet'
'TBPM' (BPM (beats per minute))                     '131.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDOR' (Original release time)                      '1958'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Reception Waltz'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Stereo-Fidelity'
'TRCK' (Track number/Position in set)               '9/9'
'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:Acoustid Id'                                  '3ff0eb9a-4f82-49e5-9d48-d2c7bd4056ac'
'TXXX:Artists'                                      '101 Strings'
'TXXX:CATALOGNUMBER'                                'SF-6400'
'TXXX:MusicBrainz Album Artist Id'                  '5c176092-cb4d-4e05-806b-1e9414f2b28c'
'TXXX:MusicBrainz Album Id'                         'e762c822-dfed-4469-a128-76afcde5f399'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5c176092-cb4d-4e05-806b-1e9414f2b28c'
'TXXX:MusicBrainz Release Group Id'                 '3c5a8f18-60c6-4232-9da1-05660181a3f5'
'TXXX:MusicBrainz Release Track Id'                 '7412fe31-181e-4a55-9a0c-f6656c9335f2'
'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'                                      '1'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['easy listening', 'jazz', 'pop', 'classical']
'TXXX:lastfmtags'                                   ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
'TXXX:originalyear'                                 '1958'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.533279'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fd72e673-279c-49f8-9270-004d73c23728')

========================== row from database ==========================
                                              'id'  1478992
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/1968 - A Bridal Bouquet/04 - O Promise Me.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  190
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  3051615
                                           'mtime'  1621705527
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country The Orchestra 1968 04 O Promise Me electronic generic or radio easy listening
                                      'tag_artist'  101 Strings
                                     'tag_release'  A Bridal Bouquet
                                       'tag_title'  Reception Waltz
                                             'bpm'  131.3
                                    'search_title'  'reception':1 'waltz':2
                                   'search_artist'  '101':1 'strings':2
                                  'search_release'  'a':1 'bouquet':3 'bridal':2
                                     'search_rest'  '1968':7 'country':4 'easy':15 'electronic':11 'exotica':2 'generic':12 'jazz':1 'listening':16 'me':10 'o':8 'oldies':3 'or':13 'orchestra':6 'promise':9 'radio':14 'the':5
                                    'search_combo'  '101':3B '1968':14 'a':5C 'bouquet':7C 'bridal':6C 'country':11 'easy':22 'electronic':18 'exotica':9 'generic':19 'jazz':8 'listening':23 'me':17 'o':15 'oldies':10 'or':20 'orchestra':13 'promise':16 'radio':21 'reception':1A 'strings':4B 'the':12 'waltz':2A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'q-play-2', 'Q-OLDST-1', '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-bass-1']
                                      'lastfmtags'  ['instrumental', 'strings', 'myhitparade', 'myhits', 'easy listening']
                                        'tag_date'  1958
                                     'discogstags'  ['easy listening', 'jazz', 'pop', 'classical']

============================== file details ==============================
                                           'mtime'  1621705526.6165562  (2021-05-22 19:45:26)
                             'size'  3051615