======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '181'
                                          'artist'  'Bill Pritchard'
                                     'text_people'  ''
                                         'release'  'Insane Music For Insane People Vol. 13'
                                           'title'  'Black Souls Under White Skies'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', "
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                                      'lastfmtags'  "['singer-songwriter', 'alternative', 'british', 'post-punk', 'mid']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '14'
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-mor'
                                             'bpm'  '115.7'
                                             'key'  '12A'
                                        'acoustid'  'baa298b0-2efb-48a1-be9c-a58e574bc2e8'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '115.7'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-mor']
'TDOR' (Original release time)                      '1987'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Black Souls Under White Skies'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'Cassette'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Pritchard'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Insane Music'
'TRCK' (Track number/Position in set)               '2/14'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Pritchard, Bill'
'TXXX:Acoustid Id'                                  'baa298b0-2efb-48a1-be9c-a58e574bc2e8'
'TXXX:CATALOGNUMBER'                                'INS 37'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'b238dc65-ab8d-4543-8053-b397382eed15'
'TXXX:MusicBrainz Album Release Country'            'BE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '87cbda97-3399-4806-8b47-465b0a04639a'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['singer-songwriter', 'alternative', 'british', 'post-punk', 'mid']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.703364'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0343c0fa-4911-460c-9a91-0f30c2e9f570')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Human Flesh - Insane Music For Insane People Vol. 13 (Insane Music, 1987) [177kvbr]/02 Black Souls Under White Skies.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  181
                                           'genre'  electronic-unsorted;set-pl-mor
                                        'filesize'  7265343
                                           'mtime'  1636758235
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Human Flesh (Insane Music, 1987) [177kvbr] 02 electronic unsorted;set mor
                                      'tag_artist'  Bill Pritchard
                                     'tag_release'  Insane Music For Insane People Vol. 13
                                       'tag_title'  Black Souls Under White Skies
                                             'bpm'  115.7
                                    'search_title'  'black':1 'skies':5 'souls':2 'under':3 'white':4
                                   'search_artist'  'bill':1 'pritchard':2
                                  'search_release'  'for':3 'insane':1 'music':2 'people':4 'vol':5,6
                                     'search_rest'  '177kvbr':9,10 '1987':7,8 'electronic':11 'flesh':2 'human':1 'insane':3,4 'mor':16 'music':5,6 'set':13,15 'unsorted':12,14
                                    'search_combo'  '177kvbr':22,23 '1987':20,21 'bill':6B 'black':1A 'electronic':24 'flesh':15 'for':10C 'human':14 'insane':8C,16,17 'mor':29 'music':9C,18,19 'people':11C 'pritchard':7B 'set':26,28 'skies':5A 'souls':2A 'under':3A 'unsorted':25,27 'vol':12C,13C 'white':4A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12A
                                           '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-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['singer-songwriter', 'alternative', 'british', 'post-punk', 'mid']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636758235.439447  (2021-11-13 00:03:55)
                             'size'  7265343