======================== unified (from filesystem) ========================
                                         'bitrate'  '171.644'
                                        'duration'  '290'
                                          'artist'  'George Benson'
                                     'text_people'  ''
                                         'release'  'The Silver Collection'
                                           'title'  'Song For My Father'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-2', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'smooth jazz', 'jazz', 'soul', 'funk']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '13'
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-smooth;funk or soul'
                                             'bpm'  '118.706'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'DB0EB00D'
'COMM:ID3v1 Comment:XXX'                            'DB0EB00D'
'TALB' (Album/Movie/Show title)                     'The Silver Collection'
'TBPM' (BPM (beats per minute))                     '118.706'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-smooth', 'funk or soul']
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'Song For My Father'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'George Benson'
'TRCK' (Track number/Position in set)               '8/13'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 2, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['guitar', 'smooth jazz', 'jazz', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.96 dB'
'TXXX:replaygain_track_peak'                        '0.672760'

========================== row from database ==========================
                                              'id'  793884
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Benson, George/The Silver Collection/George Benson - Song For My Father.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  290
                                           'genre'  prerock-jb-jazz-soft-smooth;funk or soul
                                        'filesize'  6236015
                                           'mtime'  1620528214
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Benson, prerock jb jazz soft smooth;funk soul
                                      'tag_artist'  George Benson
                                     'tag_release'  The Silver Collection
                                       'tag_title'  Song For My Father
                                             'bpm'  118.706
                                    'search_title'  'father':4 'for':2 'my':3 'song':1
                                   'search_artist'  'benson':2 'george':1
                                  'search_release'  'collection':3 'silver':2 'the':1
                                     'search_rest'  'benson':5,6 'country':4 'exotica':2 'funk':11,13 'jazz':1 'jb':8 'oldies':3 'prerock':7 'smooth':10,12 'soft':9 'soul':14
                                    'search_combo'  'benson':6B,14,15 'collection':9C 'country':13 'exotica':11 'father':4A 'for':2A 'funk':20,22 'george':5B 'jazz':10 'jb':17 'my':3A 'oldies':12 'prerock':16 'silver':8C 'smooth':19,21 'soft':18 'song':1A 'soul':23 'the':7C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'smooth jazz', 'jazz', 'soul', 'funk']
                                        'tag_date'  1984
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620528213.6134567  (2021-05-09 04:43:33)
                             'size'  6236015