======================== unified (from filesystem) ========================
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                                        'duration'  '196'
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                                           'title'  'Staple It Together'
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                                     'tracknumber'  '7'
                                      'tracktotal'  '14'
                                            'date'  '2005'
                                        'comments'  ''
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                                             'key'  '8A'
                                        'acoustid'  '5c335023-740e-450f-9d73-d07d8dd543ac'
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'TBPM' (BPM (beats per minute))                     '125.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Staple It Together'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '196000'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Johnson'
'TPE2' (Band/orchestra/accompaniment)               'Jack Johnson'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Brushfire Records'
'TRCK' (Track number/Position in set)               '7/14'
'TSO2'                                              'Johnson, Jack'
'TSOP' (Performer sort order)                       'Johnson, Jack'
'TSRC' (ISRC (international standard recording code))  'USMC60400033'
'TXXX:ARTISTS'                                      'Jack Johnson'
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'TXXX:MusicBrainz Album Id'                         '9ed26325-5e6b-4b53-8d8b-ca500d00310b'
'TXXX:MusicBrainz Album Release Country'            'AU'
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'TXXX:MusicBrainz Artist Id'                        'ff6e677f-91dd-4986-a174-8db0474b1799'
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'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:Rip date'                                     '2005-02-15'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:User defined text information'                'User defined text information'
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
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'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-8.81 dB'
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========================== row from database ==========================
                                              'id'  1539212
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/In Between Dreams (2005)/07 - Staple It Together.mp3
                                         'working'  None
                                         'bitrate'  208
                                    'duration_sec'  196
                                           'genre'  ifs-songwriter
                                        'filesize'  5216839
                                           'mtime'  1640653267
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock (2005) 07 ifs songwriter
                                      'tag_artist'  Jack Johnson
                                     'tag_release'  In Between Dreams
                                       'tag_title'  Staple It Together
                                             'bpm'  125.2
                                    'search_title'  'it':2 'staple':1 'together':3
                                   'search_artist'  'jack':1 'johnson':2
                                  'search_release'  'between':2 'dreams':3 'in':1
                                     'search_rest'  '00poprockelectronic':1 '2005':4,5 'ifs':6 'indierock':3 'poprock':2 'songwriter':7
                                    'search_combo'  '00poprockelectronic':9 '2005':12,13 'between':7C 'dreams':8C 'ifs':14 'in':6C 'indierock':11 'it':2A 'jack':4B 'johnson':5B 'poprock':10 'songwriter':15 'staple':1A 'together':3A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-SYN-1', 'Q-UNU-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-4', 'Q-CHART-4', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1']
                                      'lastfmtags'  []
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1640653266.8333592  (2021-12-28 02:01:06)
                             'size'  5216839