======================== unified (from filesystem) ========================
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                                        'duration'  '159'
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                                     'text_people'  ''
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                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['indie', 'german', 'electronic', 'pop', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '19'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '87'
                                             'key'  '4A'
                                        'acoustid'  '430c9d3a-c1a5-4dcc-973d-8b3be885e9d0'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '87'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-01-25'
'TENC' (Encoded by)                                 'Lame 3.90.3 Mod'
'TIT2' (Title/songname/content description)         'Ich bin nackt'
'TKEY' (Initial key)                                '4A'
'TLAN' (Language(s))                                'English'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Stereo Total'
'TPE2' (Band/orchestra/accompaniment)               'Stereo Total'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Kill Rock Stars'
'TRCK' (Track number/Position in set)               '3/19'
'TSO2'                                              'Stereo Total'
'TSOP' (Performer sort order)                       'Stereo Total'
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'TXXX:Acoustid Id'                                  '430c9d3a-c1a5-4dcc-973d-8b3be885e9d0'
'TXXX:Artists'                                      'Stereo Total'
'TXXX:BARCODE'                                      '7596560409214'
'TXXX:CATALOGNUMBER'                                'KRS 409'
'TXXX:MusicBrainz Album Artist Id'                  '475ae7a5-07de-46a8-a88d-4322259aafa9'
'TXXX:MusicBrainz Album Id'                         '83d94aaf-599a-4733-b113-b556e1a99385'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '475ae7a5-07de-46a8-a88d-4322259aafa9'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['indie', 'german', 'electronic', 'pop', 'french']
'TXXX:originalyear'                                 '2005'
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'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.23 dB'
'TXXX:replaygain_track_peak'                        '0.388322'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'cbda57dc-f2ad-4257-a929-3ec99da0e9f0')

========================== row from database ==========================
                                              'id'  1254614
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Stereo Total/do the bambi (2005)/03 - ich bin nackt.mp3
                                         'working'  None
                                         'bitrate'  153
                                    'duration_sec'  159
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3071103
                                           'mtime'  1621630298
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos do bambi (2005) 03 ich ifs songwriter indie unsorted
                                      'tag_artist'  Stereo Total
                                     'tag_release'  Do the Bambi
                                       'tag_title'  Ich bin nackt
                                             'bpm'  87.0
                                    'search_title'  'bin':2 'ich':1 'nackt':3
                                   'search_artist'  'stereo':1 'total':2
                                  'search_release'  'bambi':3 'do':1 'the':2
                                     'search_rest'  '00singer':1 '2005':6,7 'bambi':5 'do':4 'eos':3 'ich':8 'ifs':9 'indie':10 'songwriter':2 'unsorted':11
                                    'search_combo'  '00singer':9 '2005':14,15 'bambi':8C,13 'bin':2A 'do':6C,12 'eos':11 'ich':1A,16 'ifs':17 'indie':18 'nackt':3A 'songwriter':10 'stereo':4B 'the':7C 'total':5B 'unsorted':19
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'german', 'electronic', 'pop', 'french']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630297.5332658  (2021-05-21 22:51:37)
                             'size'  3071103