======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '152'
                                          'artist'  'Bruce Haack'
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                                         'release'  'Electronic Record for Children'
                                           'title'  'Clapping With Katy'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
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                                      'lastfmtags'  "['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '13'
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth-moog'
                                             'bpm'  '145.1'
                                             'key'  '4A'
                                        'acoustid'  'd8a5033d-12ce-45c7-aef6-3539e3685e8e'
rest: ''

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

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'COMM:iTunes_CDDB_IDs:eng'                          '13+3676CDECD10325BC3B90A86ECB89D3A2+3640142'
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'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth-moog']
'TDOR' (Original release time)                      '1969'
'TDRC' (Recording time)                             '1969'
'TENC' (Encoded by)                                 'iTunes v4.1'
'TIT2' (Title/songname/content description)         'Clapping With Katy'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bruce Haack'
'TPE2' (Band/orchestra/accompaniment)               'Bruce Haack'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/13'
'TSO2'                                              'Haack, Bruce'
'TSOP' (Performer sort order)                       'Haack, Bruce'
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'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
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'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.25 dB'
'TXXX:replaygain_track_peak'                        '0.546786'
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========================== row from database ==========================
                                              'id'  770220
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Early Moog & Synthesizer Music/[1969] Bruce Haack - The Electronic Record For Children/12. Clapping With Katy.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  152
                                           'genre'  electronic-experimental-early;mi-earlysynth-moog
                                        'filesize'  4901147
                                           'mtime'  1636920389
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Early Moog & Synthesizer Music [1969] The For 12. electronic experimental early;mi earlysynth moog
                                      'tag_artist'  Bruce Haack
                                     'tag_release'  Electronic Record for Children
                                       'tag_title'  Clapping With Katy
                                             'bpm'  145.1
                                    'search_title'  'clapping':1 'katy':3 'with':2
                                   'search_artist'  'bruce':1 'haack':2
                                  'search_release'  'children':4 'electronic':1 'for':3 'record':2
                                     'search_rest'  '12':9,10 '1969':5,6 'early':1,13,15 'earlysynth':17 'electronic':11 'experimental':12 'for':8 'mi':14,16 'moog':2 'music':4 'synthesizer':3 'the':7
                                    'search_combo'  '12':18,19 '1969':14,15 'bruce':4B 'children':9C 'clapping':1A 'early':10,22,24 'earlysynth':26 'electronic':6C,20 'experimental':21 'for':8C,17 'haack':5B 'katy':3A 'mi':23,25 'moog':11 'music':13 'record':7C 'synthesizer':12 'the':16 'with':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']
                                        'tag_date'  1969
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636920389.1732953  (2021-11-14 21:06:29)
                             'size'  4901147