======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '259'
                                          'artist'  'The Pixies'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Where Is My Mind (Bassnectar R'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', '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-3']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'indie', 'rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '84.987'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0000163C 000015D3 00007D83 0'
'TBPM' (BPM (beats per minute))                     '84.987'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         'Where Is My Mind (Bassnectar R'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Pixies'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'indie', 'rock', 'indie rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.40 dB'
'TXXX:replaygain_track_peak'                        '0.391111'

========================== row from database ==========================
                                              'id'  1291363
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Pixies/The Pixies - Where Is My Mind (Bassnectar Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  259
                                           'genre'  rock-unsorted
                                        'filesize'  10395865
                                           'mtime'  1620392095
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Remix) rock unsorted
                                      'tag_artist'  The Pixies
                                     'tag_release'  None
                                       'tag_title'  Where Is My Mind (Bassnectar R
                                             'bpm'  84.987
                                    'search_title'  'bassnectar':5,6 'is':2 'mind':4 'my':3 'r':7 'where':1
                                   'search_artist'  'pixies':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'remix':2,3 'rock':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':10 'bassnectar':5A,6A 'is':2A 'mind':4A 'my':3A 'pixies':9B 'r':7A 'remix':11,12 'rock':13 'the':8B 'unsorted':14 'where':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'indie', 'rock', 'indie rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392095.0048368  (2021-05-07 14:54:55)
                             'size'  10395865