======================== unified (from filesystem) ========================
                                         'bitrate'  '254.64'
                                        'duration'  '246'
                                          'artist'  'Lizz Wright'
                                     'text_people'  ''
                                         'release'  'Salt'
                                           'title'  'Blue Rose'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'jazz', 'vocal jazz', 'soul', 'singer songwriter']"
                                     'discogstags'  "['jazz', 'pop', 'soul-jazz', 'smooth jazz', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '137.013'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000003AC 00000395 00002624'
'COMM:iTunNORM:eng'                                 (' 000003AC 00000395 00002624 0000282C 0002D02E 0002D02E 00008000 00008000 '
 '0000E949 000162D4')
'TALB' (Album/Movie/Show title)                     'Salt'
'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Blue Rose'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lizz Wright'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'pop', 'soul-jazz', 'smooth jazz', 'ballad']
'TXXX:lastfmtags'                                   ['female vocalists', 'jazz', 'vocal jazz', 'soul', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.676163'

========================== row from database ==========================
                                              'id'  1294352
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/(10) blue rose.mp3
                                         'working'  None
                                         'bitrate'  254
                                    'duration_sec'  246
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7837568
                                           'mtime'  1620541155
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] (10) blue rose prerock jb jazz unsorted
                                      'tag_artist'  Lizz Wright
                                     'tag_release'  Salt
                                       'tag_title'  Blue Rose
                                             'bpm'  137.013
                                    'search_title'  'blue':1 'rose':2
                                   'search_artist'  'lizz':1 'wright':2
                                  'search_release'  'salt':1
                                     'search_rest'  '00poprockelectronic':1 '10':7,8 'blue':9 'files':5,6 'jazz':13 'jb':12 'loose':3,4 'prerock':11 'rose':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':6 '10':12,13 'blue':1A,14 'files':10,11 'jazz':18 'jb':17 'lizz':3B 'loose':8,9 'prerock':16 'rose':2A,15 'salt':5C 'unsorted':7 'wright':4B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'jazz', 'vocal jazz', 'soul', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['jazz', 'pop', 'soul-jazz', 'smooth jazz', 'ballad']

============================== file details ==============================
                                           'mtime'  1620541154.838783  (2021-05-09 08:19:14)
                             'size'  7837568