======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '153'
                                          'artist'  'Riders in the Sky'
                                     'text_people'  ''
                                         'release'  'Novelty Songs'
                                           'title'  "Livin' in a Mobile Home"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'folk', 'cowboy', 'western', 'americana']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '35'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '101.921'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Novelty Songs'
'TBPM' (BPM (beats per minute))                     '101.921'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TIT2' (Title/songname/content description)         "Livin' in a Mobile Home"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Riders in the Sky'
'TRCK' (Track number/Position in set)               '6/35'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.96, 128 Kbit/s, Joint Stereo, High quality'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'folk', 'cowboy', 'western', 'americana']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.597787'

========================== row from database ==========================
                                              'id'  1514504
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/Riders in the Sky - 06 - Livin_ in a Mobile Home.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  153
                                           'genre'  ifs-unsorted
                                        'filesize'  2452027
                                           'mtime'  1620568698
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean 06 Livin_ ifs unsorted
                                      'tag_artist'  Riders in the Sky
                                     'tag_release'  Novelty Songs
                                       'tag_title'  Livin' in a Mobile Home
                                             'bpm'  101.921
                                    'search_title'  'a':4 'home':6 'in':3 'livin':1,2 'mobile':5
                                   'search_artist'  'in':2 'riders':1 'sky':4 'the':3
                                  'search_release'  'novelty':1 'songs':2
                                     'search_rest'  '00poprockelectronic':1 'clean':2 'ifs':4 'livin':3 'unsorted':5
                                    'search_combo'  '00poprockelectronic':13 'a':4A 'clean':14 'home':6A 'ifs':16 'in':3A,8B 'livin':1A,2A,15 'mobile':5A 'novelty':11C 'riders':7B 'sky':10B 'songs':12C 'the':9B 'unsorted':17
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'folk', 'cowboy', 'western', 'americana']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568698.1561613  (2021-05-09 15:58:18)
                             'size'  2452027