======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '600'
                                          'artist'  'Jazzanova'
                                     'text_people'  'A. Barck/S. Leisering'
                                         'release'  'Remixed'
                                           'title'  "Days to come (Ian O'Brien mix)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acid jazz', 'jazz', 'electronic', 'nu jazz', 'chillout']"
                                     'discogstags'  ("['electronic', 'jazzdance', 'future jazz', 'hip hop', 'tech house', 'acid "
 "jazz', 'downtempo']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-dark or acid'
                                             'bpm'  '129.979'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Remixed'
'TBPM' (BPM (beats per minute))                     '129.979'
'TCOM' (Composer)                                   'A. Barck/S. Leisering'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-dark or acid'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         "Days to come (Ian O'Brien mix)"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jazzanova'
'TPE2' (Band/orchestra/accompaniment)               'Jazzanova'
'TPUB' (Publisher)                                  'Jazzanova/Compost'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic',
 'jazzdance',
 'future jazz',
 'hip hop',
 'tech house',
 'acid jazz',
 'downtempo']
'TXXX:lastfmtags'                                   ['acid jazz', 'jazz', 'electronic', 'nu jazz', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.49 dB'
'TXXX:replaygain_track_peak'                        '0.520754'

========================== row from database ==========================
                                              'id'  1514189
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Electro Jazz/Jazzanova - Days To Come (Ian O_brien mix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  600
                                           'genre'  prerock-jb-jazz-newer-dark or acid
                                        'filesize'  14420188
                                           'mtime'  1620528645
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Electro To Come O_brien prerock jb jazz newer dark or acid
                                      'tag_artist'  Jazzanova
                                     'tag_release'  Remixed
                                       'tag_title'  Days to come (Ian O'Brien mix)
                                             'bpm'  129.979
                                    'search_title'  'brien':7 'come':3 'days':1 'ian':4,5 'mix':9,10 'o':6 'obrien':8 'to':2
                                   'search_artist'  'jazzanova':1
                                  'search_release'  'remixed':1
                                     'search_rest'  'acid':15 'brien':9 'come':7 'country':4 'dark':13 'electro':5 'exotica':2 'jazz':1 'jb':11 'newer':12 'o':8 'oldies':3 'or':14 'prerock':10 'to':6
                                    'search_combo'  'acid':27 'brien':7A,21 'come':3A,19 'country':16 'dark':25 'days':1A 'electro':17 'exotica':14 'ian':4A,5A 'jazz':13 'jazzanova':11B 'jb':23 'mix':9A,10A 'newer':24 'o':6A,20 'obrien':8A 'oldies':15 'or':26 'prerock':22 'remixed':12C 'to':2A,18
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['acid jazz', 'jazz', 'electronic', 'nu jazz', 'chillout']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'jazzdance', 'future jazz', 'hip hop', 'tech house', 'acid jazz', 'downtempo']

============================== file details ==============================
                                           'mtime'  1620528644.9963322  (2021-05-09 04:50:44)
                             'size'  14420188