======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '552'
                                          'artist'  'Phil Harmonic'
                                     'text_people'  ''
                                         'release'  'You'
                                           'title'  'Greatest'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['punk', 'post punk', 'creative commons', 'free music', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-you'
                                             'bpm'  '130.063'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'You'
'TBPM' (BPM (beats per minute))                     '130.063'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-you'
'TIT2' (Title/songname/content description)         'Greatest'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Phil Harmonic'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['punk', 'post punk', 'creative commons', 'free music', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+3.73 dB'
'TXXX:replaygain_track_peak'                        '0.957027'

========================== row from database ==========================
                                              'id'  763055
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/You/06 - Phil Harmonic - Greatest.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  552
                                           'genre'  set-pl-you
                                        'filesize'  13268197
                                           'mtime'  1620356042
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes 06 set pl you
                                      'tag_artist'  Phil Harmonic
                                     'tag_release'  You
                                       'tag_title'  Greatest
                                             'bpm'  130.063
                                    'search_title'  'greatest':1
                                   'search_artist'  'harmonic':2 'phil':1
                                  'search_release'  'you':1
                                     'search_rest'  '0novelty':2 '0playlists':1 'pl':5 'set':4 'themes':3 'you':6
                                    'search_combo'  '0novelty':6 '0playlists':5 'greatest':1A 'harmonic':3B 'phil':2B 'pl':9 'set':8 'themes':7 'you':4C,10
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['punk', 'post punk', 'creative commons', 'free music', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620356042.436163  (2021-05-07 04:54:02)
                             'size'  13268197