======================== unified (from filesystem) ========================
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                                        'duration'  '477'
                                          'artist'  'John Coltrane'
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                                            'date'  '2009'
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======================== rawer (from filesystem) ========================

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'TPE1' (Lead performer(s)/Soloist(s))               'John Coltrane'
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========================== row from database ==========================
                                              'id'  1509259
                                            'path'  /data/Music/Bulk/00poprockelectronic/John Coltrane/Blue Train [1957]/John Coltrane - 04 - I_m Old Fashioned.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  477
                                           'genre'  prerock-jb-jazz-newer-experimental or free
                                        'filesize'  7694690
                                           'mtime'  1620540862
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1957] 04 I_m prerock jb jazz newer experimental or free
                                      'tag_artist'  John Coltrane
                                     'tag_release'  Blue Train
                                       'tag_title'  I'm Old Fashioned
                                             'bpm'  84.2
                                    'search_title'  'fashioned':5 'i':1 'im':3 'm':2 'old':4
                                   'search_artist'  'coltrane':2 'john':1
                                  'search_release'  'blue':1 'train':2
                                     'search_rest'  '00poprockelectronic':1 '1957':2,3 'experimental':10 'free':12 'i':4 'jazz':8 'jb':7 'm':5 'newer':9 'or':11 'prerock':6
                                    'search_combo'  '00poprockelectronic':10 '1957':11,12 'blue':8C 'coltrane':7B 'experimental':19 'fashioned':5A 'free':21 'i':1A,13 'im':3A 'jazz':17 'jb':16 'john':6B 'm':2A,14 'newer':18 'old':4A 'or':20 'prerock':15 'train':9C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['free jazz', 'avant garde', 'jazz', 'saxophone', 'bebop']
                                        'tag_date'  2009
                                     'discogstags'  ['jazz', 'hard bop']

============================== file details ==============================
                                           'mtime'  1620540861.68899  (2021-05-09 08:14:21)
                             'size'  7694690