======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '191'
                                          'artist'  'Jean-Jacques Perrey'
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                                           'title'  'E.V.A.'
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 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
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                                      'lastfmtags'  "['moog', 'somafm', 'french', 'illstreet', 'space age pop', 'electronic']"
                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '19'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth-moog'
                                             'bpm'  '108'
                                             'key'  '7B'
                                        'acoustid'  '198f84e5-8784-4277-84ce-e1d8730c35e9'
rest: ''

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'TBPM' (BPM (beats per minute))                     '108'
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'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth-moog']
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'E.V.A.'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jean-Jacques Perrey'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Perrey, Jean-Jacques'
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'TXXX:Artists'                                      'Jean-Jacques Perrey'
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'TXXX:MusicBrainz Album Id'                         '94710249-dc2d-4a88-bc85-3671a3701109'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['moog', 'somafm', 'french', 'illstreet', 'space age pop', 'electronic']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.479487'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Early Moog & Synthesizer Music/Best Of Moog - Electronic Pop Hits From The 60s & 70s/03. Jean Jacques Perrey - E.V.R..mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  191
                                           'genre'  electronic-experimental-early;mi-earlysynth-moog
                                        'filesize'  7686705
                                           'mtime'  1621628580
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Early Synthesizer Music Of The 60s 70s 03. E.V.R. electronic experimental early;mi earlysynth moog
                                      'tag_artist'  Jean-Jacques Perrey
                                     'tag_release'  Best of Moog: Electronic Pop Hits From the 60's & 70's
                                       'tag_title'  E.V.A.
                                             'bpm'  108.0
                                    'search_title'  'a':3 'e':1 'eva':4 'v':2
                                   'search_artist'  'jacques':2 'jean':1 'jeanjacques':3 'perrey':4
                                  'search_release'  '60':10 '60s':12 '70':13 '70s':15 'best':1 'electronic':5 'from':8 'hits':7 'moog':3,4 'of':2 'pop':6 's':11,14 'the':9
                                     'search_rest'  '03':8,9 '60s':6 '70s':7 'e':10 'early':1,16,18 'earlysynth':20 'electronic':14 'evr':13 'experimental':15 'mi':17,19 'moog':21 'music':3 'of':4 'r':12 'synthesizer':2 'the':5 'v':11
                                    'search_combo'  '03':31,32 '60':18C '60s':20C,29 '70':21C '70s':23C,30 'a':3A 'best':9C 'e':1A,33 'early':24,39,41 'earlysynth':43 'electronic':13C,37 'eva':4A 'evr':36 'experimental':38 'from':16C 'hits':15C 'jacques':6B 'jean':5B 'jeanjacques':7B 'mi':40,42 'moog':11C,12C,44 'music':26 'of':10C,27 'perrey':8B 'pop':14C 'r':35 's':19C,22C 'synthesizer':25 'the':17C,28 'v':2A,34
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['moog', 'somafm', 'french', 'illstreet', 'space age pop', 'electronic']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628579.5501  (2021-05-21 22:22:59)
                             'size'  7686705