======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '213'
                                          'artist'  'Cirrus'
                                     'text_people'  ''
                                         'release'  'Counterfeit'
                                           'title'  'Boomerang'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-3', '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-3', 'q-mixbeat-3']")
                                      'lastfmtags'  ("['industrial', 'electronica', 'electronic', 'big beat', 'breakbeat', "
 "'downtempo']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '120.113'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Counterfeit'
'TBPM' (BPM (beats per minute))                     '120.113'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Boomerang'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cirrus'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['industrial',
 'electronica',
 'electronic',
 'big beat',
 'breakbeat',
 'downtempo']
'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'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.431866'

========================== row from database ==========================
                                              'id'  1286156
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Cirrus - Boomerang.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  213
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  2564274
                                           'mtime'  1620572761
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic generic or radio bigbeat
                                      'tag_artist'  Cirrus
                                     'tag_release'  Counterfeit
                                       'tag_title'  Boomerang
                                             'bpm'  120.113
                                    'search_title'  'boomerang':1
                                   'search_artist'  'cirrus':1
                                  'search_release'  'counterfeit':1
                                     'search_rest'  '00poprockelectronic':1 'bigbeat':11 'electronic':7 'files':5,6 'generic':8 'loose':3,4 'or':9 'radio':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 'bigbeat':14 'boomerang':1A 'cirrus':2B 'counterfeit':3C 'electronic':10 'files':8,9 'generic':11 'loose':6,7 'or':12 'radio':13 'unsorted':5
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'electronica', 'electronic', 'big beat', 'breakbeat', 'downtempo']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620572761.3339663  (2021-05-09 17:06:01)
                             'size'  2564274