======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '213'
                                          'artist'  'D.o.a'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Yesterday'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', "
 "'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hardcore punk', 'punk', 'punk rock', 'hardcore', 'canadian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '116.320'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '116.320'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Yesterday'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'D.o.a'
'TPE2' (Band/orchestra/accompaniment)               'D.o.a'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hardcore punk', 'punk', 'punk rock', 'hardcore', 'canadian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+9.01 dB'
'TXXX:replaygain_track_peak'                        '0.122438'

========================== row from database ==========================
                                              'id'  1351033
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/D.O.A - Yesterday [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  213
                                           'genre'  rock-gr-punk
                                        'filesize'  5136796
                                           'mtime'  1636912541
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] D.O.A [] rock gr punk
                                      'tag_artist'  D.o.a
                                     'tag_release'  None
                                       'tag_title'  Yesterday
                                             'bpm'  116.32
                                    'search_title'  'yesterday':1
                                   'search_artist'  'a':3 'd':1 'doa':4 'o':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'a':9 'd':7 'doa':10 'files':5,6 'gr':12 'loose':3,4 'o':8 'punk':13 'rock':11 'unsorted':2
                                    'search_combo'  '00poprockelectronic':6 'a':4B,14 'd':2B,12 'doa':5B,15 'files':10,11 'gr':17 'loose':8,9 'o':3B,13 'punk':18 'rock':16 'unsorted':7 'yesterday':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['hardcore punk', 'punk', 'punk rock', 'hardcore', 'canadian']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912540.534738  (2021-11-14 18:55:40)
                             'size'  5136796