======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '562'
                                          'artist'  'William Onyeabor'
                                     'text_people'  ''
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                                           'title'  'The Moon And The Sun'
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                                      'lastfmtags'  "['afrobeat', 'funk', 'nigeria', 'african', 'african funk']"
                                     'discogstags'  "['funk', 'electronic', 'funk / soul']"
                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '4'
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '145.5'
                                             'key'  '12B'
                                        'acoustid'  '8f6af3a1-0fb6-4fc1-9e42-71c041352a37'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '145.5'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDOR' (Original release time)                      '1982'
'TDRC' (Recording time)                             '1982'
'TENC' (Encoded by)                                 'iTunes 8.2.1.6'
'TIT2' (Title/songname/content description)         'The Moon And The Sun'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'William Onyeabor'
'TPE2' (Band/orchestra/accompaniment)               'William Onyeabor'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Wilfilms Records'
'TRCK' (Track number/Position in set)               '1/4'
'TSO2'                                              'Onyeabor, William'
'TSOP' (Performer sort order)                       'Onyeabor, William'
'TXXX:Acoustid Id'                                  '8f6af3a1-0fb6-4fc1-9e42-71c041352a37'
'TXXX:Artists'                                      'William Onyeabor'
'TXXX:CATALOGNUMBER'                                'WLP 018'
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'TXXX:discogstags'                                  ['funk', 'electronic', 'funk / soul']
'TXXX:lastfmtags'                                   ['afrobeat', 'funk', 'nigeria', 'african', 'african funk']
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'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '4'
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'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '1.018857'
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========================== row from database ==========================
                                              'id'  1492331
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/william onyeabor - hypertension + anything you sow (1985)/01 the moon and the sun.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  562
                                           'genre'  loc-africa-nigeria
                                        'filesize'  22611030
                                           'mtime'  1621629095
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa william onyeabor hypertension + anything you sow (1985) 01 the moon and the sun loc africa nigeria
                                      'tag_artist'  William Onyeabor
                                     'tag_release'  Hypertension
                                       'tag_title'  The Moon And The Sun
                                             'bpm'  145.5
                                    'search_title'  'and':3 'moon':2 'sun':4 'the':1
                                   'search_artist'  'onyeabor':2 'william':1
                                  'search_release'  'hypertension':1
                                     'search_rest'  '00africa':1 '1985':8,9 'africa':15 'and':12 'anything':5 'hypertension':4 'loc':14 'moon':11 'nigeria':16 'onyeabor':3 'sow':7 'sun':13 'the':10 'william':2 'you':6
                                    'search_combo'  '00africa':8 '1985':15,16 'africa':22 'and':3A,19 'anything':12 'hypertension':7C,11 'loc':21 'moon':2A,18 'nigeria':23 'onyeabor':6B,10 'sow':14 'sun':4A,20 'the':1A,17 'william':5B,9 'you':13
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-2']
                                      'lastfmtags'  ['afrobeat', 'funk', 'nigeria', 'african', 'african funk']
                                        'tag_date'  1982
                                     'discogstags'  ['funk', 'electronic', 'funk / soul']

============================== file details ==============================
                                           'mtime'  1621629094.7376223  (2021-05-21 22:31:34)
                             'size'  22611030