======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '242'
                                          'artist'  'Crowded House'
                                     'text_people'  ''
                                         'release'  'Woodface'
                                           'title'  'Chocolate Cake'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'australian', 'new zealand', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '116.587'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Woodface'
'TBPM' (BPM (beats per minute))                     '116.587'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Chocolate Cake'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Crowded House'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['80s', 'australian', 'new zealand', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.704541'

========================== row from database ==========================
                                              'id'  1342637
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0175 Crowded House - Woodface__cifsde8c.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  242
                                           'genre'  rock-unsorted
                                        'filesize'  5813698
                                           'mtime'  1620392551
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0175 Woodface__cifsde8c rock unsorted
                                      'tag_artist'  Crowded House
                                     'tag_release'  Woodface
                                       'tag_title'  Chocolate Cake
                                             'bpm'  116.587
                                    'search_title'  'cake':2 'chocolate':1
                                   'search_artist'  'crowded':1 'house':2
                                  'search_release'  'woodface':1
                                     'search_rest'  '00poprockelectronic':1 '0175':5 '1000':4 'album':2 'cifsde8c':7 'rock':8 'top':3 'unsorted':9 'woodface':6
                                    'search_combo'  '00poprockelectronic':6 '0175':10 '1000':9 'album':7 'cake':2A 'chocolate':1A 'cifsde8c':12 'crowded':3B 'house':4B 'rock':13 'top':8 'unsorted':14 'woodface':5C,11
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'australian', 'new zealand', 'pop', 'rock']
                                        'tag_date'  1991
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620392550.8367436  (2021-05-07 15:02:30)
                             'size'  5813698