======================== unified (from filesystem) ========================
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                                        'duration'  '168'
                                          'artist'  'Neil Innes'
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                                           'title'  'How Sweet to Be an Idiot'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '18'
                                            'date'  '1995'
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======================== rawer (from filesystem) ========================

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'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'entertaining-eccentric']
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'How Sweet to Be an Idiot'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Neil Innes'
'TPE2' (Band/orchestra/accompaniment)               'Neil Innes'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/18'
'TSO2'                                              'Innes, Neil'
'TSOP' (Performer sort order)                       'Innes, Neil'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
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'TXXX:discogstags'                                  ['rock', 'brit pop', 'pop rock']
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'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
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'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
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'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.88 dB'
'TXXX:replaygain_track_peak'                        '0.743569'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0incharacter/Bonzo Dog Band/Bonzo Dog Doo Dah Band - Neil Innes - How Sweet To Be An Idiot.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  168
                                           'genre'  ifs-songwriter;entertaining-eccentric
                                        'filesize'  2696041
                                           'mtime'  1620527158
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0incharacter Bonzo Dog Band Bonzo Dog Doo Dah Band To An ifs songwriter;entertaining eccentric
                                      'tag_artist'  Neil Innes
                                     'tag_release'  Re-Cycled Vinyl Blues
                                       'tag_title'  How Sweet to Be an Idiot
                                             'bpm'  145.895
                                    'search_title'  'an':5 'be':4 'how':1 'idiot':6 'sweet':2 'to':3
                                   'search_artist'  'innes':2 'neil':1
                                  'search_release'  'blues':5 'cycled':2 're':1 'recycled':3 'vinyl':4
                                     'search_rest'  '0incharacter':1 'an':8 'band':4 'bonzo':2 'dah':6 'dog':3 'doo':5 'eccentric':14 'entertaining':11,13 'ifs':9 'songwriter':10,12 'to':7
                                    'search_combo'  '0incharacter':14 'an':5A,21 'band':17 'be':4A 'blues':13C 'bonzo':15 'cycled':10C 'dah':19 'dog':16 'doo':18 'eccentric':27 'entertaining':24,26 'how':1A 'idiot':6A 'ifs':22 'innes':8B 'neil':7B 're':9C 'recycled':11C 'songwriter':23,25 'sweet':2A 'to':3A,20 'vinyl':12C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'Q-PIANO-4', 'q-mixbeat-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['need to rate', 'comedy', 'humor', 'british', 'singer songwriter']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'brit pop', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620527158.415353  (2021-05-09 04:25:58)
                             'size'  2696041