======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'a-ha'
                                     'text_people'  ''
                                         'release'  'Headlines and Deadlines: The Hits of a-ha'
                                           'title'  'Train of Thought (remix)'
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                                      'lastfmtags'  "['80s', 'new wave', 'synth pop', 'pop', 'norwegian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '16'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '139.178'
                                             'key'  '10A'
                                        'acoustid'  '08103bef-ff13-488a-b99f-4b3c09c78345'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Headlines and Deadlines: The Hits of a-ha'
'TBPM' (BPM (beats per minute))                     '139.178'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Train of Thought (remix)'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'a-ha'
'TPE2' (Band/orchestra/accompaniment)               'a-ha'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'wea'
'TRCK' (Track number/Position in set)               '15/16'
'TSO2'                                              'a-ha'
'TSOP' (Performer sort order)                       'a-ha'
'TSRC' (ISRC (international standard recording code))  'USWB10403933'
'TXXX:ASIN'                                         'B000006SA5'
'TXXX:Acoustid Id'                                  '08103bef-ff13-488a-b99f-4b3c09c78345'
'TXXX:BARCODE'                                      '075992677325'
'TXXX:CATALOGNUMBER'                                '7599-26773-2'
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'TXXX:MusicBrainz Album Id'                         'b146f802-9201-397a-8368-fbb354090ba5'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '7364dea6-ca9a-48e3-be01-b44ad0d19897'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'synth pop', 'pop', 'norwegian']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.631150'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00newwave-postpunk/A-ha/Headlines and Deadlines (best of)/A-Ha - Train of Thought (Remix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  4107031
                                           'mtime'  1620611128
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00newwave postpunk A (best of) A Ha (Remix) electronic we new wave or post punk
                                      'tag_artist'  a-ha
                                     'tag_release'  Headlines and Deadlines: The Hits of a-ha
                                       'tag_title'  Train of Thought (remix)
                                             'bpm'  139.178
                                    'search_title'  'of':2 'remix':4,5 'thought':3 'train':1
                                   'search_artist'  'a':1 'aha':3 'ha':2
                                  'search_release'  'a':8 'aha':10 'and':2 'deadlines':3,4 'ha':9 'headlines':1 'hits':6 'of':7 'the':5
                                     'search_rest'  '00newwave':4 '00poprockelectronic':1 'a':6 'best':7,8 'disco':3 'electronic':14 'ha':11 'new':16 'of':9,10 'or':18 'post':19 'postpunk':5 'punk':20 'remix':12,13 'wave':17 'waves':2 'we':15
                                    'search_combo'  '00newwave':22 '00poprockelectronic':19 'a':6B,16C,24 'aha':8B,18C 'and':10C 'best':25,26 'deadlines':11C,12C 'disco':21 'electronic':32 'ha':7B,17C,29 'headlines':9C 'hits':14C 'new':34 'of':2A,15C,27,28 'or':36 'post':37 'postpunk':23 'punk':38 'remix':4A,5A,30,31 'the':13C 'thought':3A 'train':1A 'wave':35 'waves':20 'we':33
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', '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-4', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'synth pop', 'pop', 'norwegian']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620611128.4212856  (2021-05-10 03:45:28)
                             'size'  4107031