======================== unified (from filesystem) ========================
                                         'bitrate'  '269.048'
                                        'duration'  '185'
                                          'artist'  'Amy Winehouse'
                                     'text_people'  ''
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '121.848'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '121.848'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Tears Dry on Their Own'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amy Winehouse'
'TRCK' (Track number/Position in set)               '399'
'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:lastfmtags'                                   ['jazz', 'female vocalists', 'soul', 'british', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+8.48 dB'
'TXXX:replaygain_track_peak'                        '0.201631'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/399 - Amy Winehouse - Tears Dry on Their Own.mp3
                                         'working'  None
                                         'bitrate'  269
                                    'duration_sec'  185
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  6236170
                                           'mtime'  1676053016
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 399 electronic generic radio unsorted
                                      'tag_artist'  Amy Winehouse
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Tears Dry on Their Own
                                             'bpm'  121.848
                                    'search_title'  'dry':2 'on':3 'own':5 'tears':1 'their':4
                                   'search_artist'  'amy':1 'winehouse':2
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 '399':3 'electronic':4 'generic':5 'radio':6 'unsorted':7 'va':2
                                    'search_combo'  '00poprockelectronic':16 '2000s':15C '399':18 '500':12C 'amy':6B 'dry':2A 'electronic':19 'generic':20 'of':14C 'on':3A 'own':5A 'pitchfork':8C,9C 'radio':21 'tears':1A 'the':10C 'their':4A 'top':11C 'tracks':13C 'unsorted':22 'va':17 'winehouse':7B
                                    'tag_tracknum'  399
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'soul', 'british', 'singer songwriter']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676053015.95257  (2023-02-10 19:16:55)
                             'size'  6236170