======================== unified (from filesystem) ========================
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                                        'duration'  '175'
                                          'artist'  'Plastikman'
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                                      'lastfmtags'  "['minimal techno', 'electronica', 'techno', 'electronic', 'minimal']"
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '12'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
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                                             'key'  '10B'
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rest: ''

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'TALB' (Album/Movie/Show title)                     ('Science Fiction Park Bundesrepublik: German Home Recording Tape Music of the '
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'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDOR' (Original release time)                      '2014'
'TDRC' (Recording time)                             '2014'
'TIT2' (Title/songname/content description)         'Pelikan'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '175333'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Plastikman'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Cache Cache'
'TRCK' (Track number/Position in set)               '10/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Plastikman'
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'TXXX:Artists'                                      'Plastikman'
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'TXXX:CATALOGNUMBER'                                'CACHE012LP'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '42a47afb-dc92-42e8-b698-0d43e633e7db'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'abee98f6-5239-4abf-bbe6-e1e2815a0dd6'
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'TXXX:MusicBrainz Release Track Id'                 '803c1678-6af2-4eef-bee2-4d5d7db535b2'
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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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimal techno', 'electronica', 'techno', 'electronic', 'minimal']
'TXXX:originalyear'                                 '2014'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.363529'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/X2 - VA - Science Fiction Park Bundesrepublik (German Home Recording Tape Music Of The 1980s)/23 Plastiktanz - Pelikan.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  175
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  7102246
                                           'mtime'  1620586691
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm X2 VA (German Of The 1980s) 23 Plastiktanz electronic techno minimal deephouse
                                      'tag_artist'  Plastikman
                                     'tag_release'  Science Fiction Park Bundesrepublik: German Home Recording Tape Music of the 1980s
                                       'tag_title'  Pelikan
                                             'bpm'  96.7
                                    'search_title'  'pelikan':1
                                   'search_artist'  'plastikman':1
                                  'search_release'  '1980s':13 'bundesrepublik':4,5 'fiction':2 'german':6 'home':7 'music':10 'of':11 'park':3 'recording':8 'science':1 'tape':9 'the':12
                                     'search_rest'  '1980s':7,8 '23':9 'deephouse':14 'electronic':11 'german':3,4 'minimal':13 'of':5 'plastiktanz':10 'techno':12 'the':6 'va':2 'x2':1
                                    'search_combo'  '1980s':15C,22,23 '23':24 'bundesrepublik':6C,7C 'deephouse':29 'electronic':26 'fiction':4C 'german':8C,18,19 'home':9C 'minimal':28 'music':12C 'of':13C,20 'park':5C 'pelikan':1A 'plastikman':2B 'plastiktanz':25 'recording':10C 'science':3C 'tape':11C 'techno':27 'the':14C,21 'va':17 'x2':16
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'electronica', 'techno', 'electronic', 'minimal']
                                        'tag_date'  2014
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620586691.4056253  (2021-05-09 20:58:11)
                             'size'  7102246