======================== unified (from filesystem) ========================
                                         'bitrate'  '166.89'
                                        'duration'  '363'
                                          'artist'  'Prince and the New Power Generation'
                                     'text_people'  ''
                                         'release'  'The Jams (The Love Symbol Album)'
                                           'title'  "3 Chains O' Gold"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'prince', 'pop', 'funk', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '18'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk-pop'
                                             'bpm'  '136.367'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'E5119012'
'COMM:ID3v1 Comment:XXX'                            'E5119012'
'TALB' (Album/Movie/Show title)                     'The Jams (The Love Symbol Album)'
'TBPM' (BPM (beats per minute))                     '136.367'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk-pop'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         "3 Chains O' Gold"
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince and the New Power Generation'
'TRCK' (Track number/Position in set)               '16/18'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 4, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'prince', 'pop', 'funk', 'soul']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.472706'

========================== row from database ==========================
                                              'id'  1521338
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Prince/The Jams (The Love Symbol Album)/Prince and The New Power Generation - 16 - 3 Chains O_ Gold.mp3
                                         'working'  None
                                         'bitrate'  166
                                    'duration_sec'  363
                                           'genre'  funk or soul-funk-pop
                                        'filesize'  7581568
                                           'mtime'  1620531454
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 16 O_ funk or soul funk pop
                                      'tag_artist'  Prince and the New Power Generation
                                     'tag_release'  The Jams (The Love Symbol Album)
                                       'tag_title'  3 Chains O' Gold
                                             'bpm'  136.367
                                    'search_title'  '3':1 'chains':2 'gold':5 'o':3,4
                                   'search_artist'  'and':2 'generation':6 'new':4 'power':5 'prince':1 'the':3
                                  'search_release'  'album':6,7 'jams':2 'love':4 'symbol':5 'the':1,3
                                     'search_rest'  'country':4 'exotica':2 'funk':6 'jazz':1 'o':5 'oldies':3 'or':7 'pop':9 'soul':8
                                    'search_combo'  '3':1A 'album':17C,18C 'and':7B 'chains':2A 'country':22 'exotica':20 'funk':24 'generation':11B 'gold':5A 'jams':13C 'jazz':19 'love':15C 'new':9B 'o':3A,4A,23 'oldies':21 'or':25 'pop':27 'power':10B 'prince':6B 'soul':26 'symbol':16C 'the':8B,12C,14C
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'prince', 'pop', 'funk', 'soul']
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531454.4527953  (2021-05-09 05:37:34)
                             'size'  7581568