======================== unified (from filesystem) ========================
                                         'bitrate'  '191.355'
                                        'duration'  '176'
                                          'artist'  'The Ink Spots'
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                                         'release'  'Flashbacks, Volume 1: High & Low: DrugSongs 1917-1944'
                                           'title'  'That Cat Is High'
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                                      'lastfmtags'  "['vocal jazz', 'jazz', '40s', 'oldies', 'swing']"
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '25'
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '92.942'
                                             'key'  '1A'
                                        'acoustid'  '8998ebdd-8bd4-406b-8498-7495fb5209b0'
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======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Flashbacks, Volume 1: High & Low: DrugSongs 1917-1944'
'TBPM' (BPM (beats per minute))                     '92.942'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'That Cat Is High'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Ink Spots'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Trikont'
'TRCK' (Track number/Position in set)               '1/25'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Ink Spots, The'
'TXXX:ASIN'                                         'B0000517E4'
'TXXX:Acoustid Id'                                  '8998ebdd-8bd4-406b-8498-7495fb5209b0'
'TXXX:CATALOGNUMBER'                                'TRIKONT US-0275'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '72e2bd66-d155-4473-807a-9f73b6a4858e'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '75f47650-8a52-494a-8334-c5279bc6db09'
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'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['vocal jazz', 'jazz', '40s', 'oldies', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.66 dB'
'TXXX:replaygain_track_peak'                        '0.413409'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Flashbacks #1 ~ Drug Songs 1917-44 ~ High and Low (Hoanzl) [217k VBR]/01 - The Ink Spots - That Cat is High.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  176
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  4219485
                                           'mtime'  1620529035
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country #1 ~ ~ and (Hoanzl) [217k VBR] 01 is prerock jb jazz unsorted
                                      'tag_artist'  The Ink Spots
                                     'tag_release'  Flashbacks, Volume 1: High & Low: DrugSongs 1917-1944
                                       'tag_title'  That Cat Is High
                                             'bpm'  92.942
                                    'search_title'  'cat':2 'high':4 'is':3 'that':1
                                   'search_artist'  'ink':2 'spots':3 'the':1
                                  'search_release'  '1':4,5 '1917':10 '19171944':12 '1944':11 'drug':13 'drugsongs':9 'flashbacks':1,2 'high':6 'low':7,8 'songs':14 'volume':3
                                     'search_rest'  '1':5,6 '217k':10,11 'and':7 'country':4 'exotica':2 'hoanzl':8,9 'is':14 'jazz':1 'jb':16 'oldies':3 'prerock':15 'unsorted':17 'vbr':12,13
                                    'search_combo'  '1':11C,12C,26,27 '1917':17C '19171944':19C '1944':18C '217k':31,32 'and':28 'cat':2A 'country':25 'drug':20C 'drugsongs':16C 'exotica':23 'flashbacks':8C,9C 'high':4A,13C 'hoanzl':29,30 'ink':6B 'is':3A,35 'jazz':22 'jb':37 'low':14C,15C 'oldies':24 'prerock':36 'songs':21C 'spots':7B 'that':1A 'the':5B 'unsorted':38 'vbr':33,34 'volume':10C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['vocal jazz', 'jazz', '40s', 'oldies', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620529035.2289066  (2021-05-09 04:57:15)
                             'size'  4219485