======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '218'
                                          'artist'  'The Shadows'
                                     'text_people'  ''
                                         'release'  "Greatest Hits Of The 90's CD3"
                                           'title'  'Hold On'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
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 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['guitar', '60s', 'oldies', 'instrumental', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-cppex'
                                             'bpm'  '130.314'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Greatest Hits Of The 90's CD3"
'TBPM' (BPM (beats per minute))                     '130.314'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-cppex']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Hold On'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Shadows'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['guitar', '60s', 'oldies', 'instrumental', 'rock', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.427755'

========================== row from database ==========================
                                              'id'  1516428
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/Greatest Hits Of The 90_s CD3 - 15 - Hold On - Wilson Phillips.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  218
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex
                                        'filesize'  8764561
                                           'mtime'  1620737018
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 90_s 15 Wilson Phillips electronic generic or radio unsorted;rock cppex
                                      'tag_artist'  The Shadows
                                     'tag_release'  Greatest Hits Of The 90's CD3
                                       'tag_title'  Hold On
                                             'bpm'  130.314
                                    'search_title'  'hold':1 'on':2
                                   'search_artist'  'shadows':2 'the':1
                                  'search_release'  '90':5 '90s':7 'cd3':8 'greatest':1 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '90':3 '90s':2 'cppex':15 'electronic':7 'generic':8 'or':9 'phillips':6 'radio':10 'rock':12,14 's':4 'unsorted':11,13 'wilson':5
                                    'search_combo'  '00poprockelectronic':13 '90':9C,15 '90s':11C,14 'cd3':12C 'cppex':27 'electronic':19 'generic':20 'greatest':5C 'hits':6C 'hold':1A 'of':7C 'on':2A 'or':21 'phillips':18 'radio':22 'rock':24,26 's':10C,16 'shadows':4B 'the':3B,8C 'unsorted':23,25 'wilson':17
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['guitar', '60s', 'oldies', 'instrumental', 'rock', 'classic rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737018.0191357  (2021-05-11 14:43:38)
                             'size'  8764561