======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '248'
                                          'artist'  'Creed'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "What's This Life For"
                                           'quals'  ("['Q-HAP-2', '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-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '95.035'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '95.035'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         "What's This Life For"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Creed'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.468522'

========================== row from database ==========================
                                              'id'  1497025
                                            'path'  /data/Music/Bulk/00poprockelectronic/Creed/Creed - What_s This Life For.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  248
                                           'genre'  rock-unsorted
                                        'filesize'  3972912
                                           'mtime'  1676053200
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic What_s rock unsorted
                                      'tag_artist'  Creed
                                     'tag_release'  None
                                       'tag_title'  What's This Life For
                                             'bpm'  95.035
                                    'search_title'  'for':6 'life':5 's':2 'this':4 'what':1 'whats':3
                                   'search_artist'  'creed':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'rock':4 's':3 'unsorted':5 'what':2
                                    'search_combo'  '00poprockelectronic':8 'creed':7B 'for':6A 'life':5A 'rock':11 's':2A,10 'this':4A 'unsorted':12 'what':1A,9 'whats':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HAP-2', '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-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1676053200.4690993  (2023-02-10 19:20:00)
                             'size'  3972912