======================== unified (from filesystem) ========================
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                                        'duration'  '152'
                                          'artist'  'NOFX'
                                     'text_people'  ''
                                         'release'  'The War on Errorism'
                                           'title'  'The Irrationality of Rationality'
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                                      'lastfmtags'  "['ska punk', 'punk rock', 'rock', 'punk', 'ska']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '14'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '106'
                                             'key'  '4A'
                                        'acoustid'  'f400d7ca-3e65-4fcb-a404-08c2478f30cd'
rest: ''

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'TBPM' (BPM (beats per minute))                     '106'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003-05-06'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['percussion', 'Erik Sandin'], ['ebow', 'Fat Mike'], ['membranophone', 'Erik Sandin'], ['guitar family', 'Eric Melvin'], ['vocals', 'Fat Mike'], ['vocals', 'El Hefe'], ['guitar', 'El Hefe'], ['bass guitar', 'Fat Mike'], ['keyboard', 'Fat Mike'], ['horn', 'El Hefe'], ['additional vocals', 'Karina Deniké'], ['additional vocals', 'Spike Slawson'], ['other vocals', 'Eric Melvin']])
'TIT2' (Title/songname/content description)         'The Irrationality of Rationality'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '152000'
'TMED' (Media type)                                 'Enhanced CD'
'TPE1' (Lead performer(s)/Soloist(s))               'NOFX'
'TPE2' (Band/orchestra/accompaniment)               'NOFX'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Fat Wreck Chords'
'TRCK' (Track number/Position in set)               '2/14'
'TSO2'                                              'NOFX'
'TSOP' (Performer sort order)                       'NOFX'
'TSRC' (ISRC (international standard recording code))  'USFW40465702'
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'TXXX:Acoustid Id'                                  'f400d7ca-3e65-4fcb-a404-08c2478f30cd'
'TXXX:Artists'                                      'NOFX'
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'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'rock', 'punk', 'ska']
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.05 dB'
'TXXX:replaygain_track_peak'                        '0.380576'
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========================== row from database ==========================
                                              'id'  1288099
                                            'path'  /data/Music/Bulk/00poprockelectronic/Nofx/the war on errorism/06 the irrationality of rationality.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  152
                                           'genre'  rock-gr-punk
                                        'filesize'  2530055
                                           'mtime'  1621695956
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Nofx the war errorism 06 the irrationality rock gr punk
                                      'tag_artist'  NOFX
                                     'tag_release'  The War on Errorism
                                       'tag_title'  The Irrationality of Rationality
                                             'bpm'  106.0
                                    'search_title'  'irrationality':2 'of':3 'rationality':4 'the':1
                                   'search_artist'  'nofx':1
                                  'search_release'  'errorism':4 'on':3 'the':1 'war':2
                                     'search_rest'  '00poprockelectronic':1 'errorism':5 'gr':8 'irrationality':6 'nofx':2 'punk':9 'rock':7 'the':3 'war':4
                                    'search_combo'  '00poprockelectronic':10 'errorism':9C,14 'gr':17 'irrationality':2A,15 'nofx':5B,11 'of':3A 'on':8C 'punk':18 'rationality':4A 'rock':16 'the':1A,6C,12 'war':7C,13
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'rock', 'punk', 'ska']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695955.8938618  (2021-05-22 17:05:55)
                             'size'  2530055