======================== unified (from filesystem) ========================
                                         'bitrate'  '259.82'
                                        'duration'  '210'
                                          'artist'  'Diablo Swing Orchestra'
                                     'text_people'  ''
                                         'release'  'Sing Along Songs for the Damned & Delirious'
                                           'title'  'Memoirs of a Roadkill'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-SYN-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['symphonic metal', 'jazz metal', 'metal', 'progressive metal', 'avant "
 "garde', 'avant garde metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;electronic-unsorted'
                                             'bpm'  '114.479'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sing Along Songs for the Damned & Delirious'
'TBPM' (BPM (beats per minute))                     '114.479'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing', 'electronic-unsorted']
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Memoirs of a Roadkill'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Diablo Swing Orchestra'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['symphonic metal',
 'jazz metal',
 'metal',
 'progressive metal',
 'avant garde',
 'avant garde metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+6.37 dB'
'TXXX:replaygain_track_peak'                        '0.294097'

========================== row from database ==========================
                                              'id'  673489
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Diablo Swing Orchestra/Sing-Along Songs for the Damned and Delirious/08_-_Memoirs_of_a_Roadkill.mp3
                                         'working'  None
                                         'bitrate'  259
                                    'duration_sec'  210
                                           'genre'  prerock-jb-jazz-soft-swing;electronic-unsorted
                                        'filesize'  6837750
                                           'mtime'  1620528453
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country and 08_ _Memoirs_of_a_Roadkill prerock jb jazz soft swing;electronic unsorted
                                      'tag_artist'  Diablo Swing Orchestra
                                     'tag_release'  Sing Along Songs for the Damned & Delirious
                                       'tag_title'  Memoirs of a Roadkill
                                             'bpm'  114.479
                                    'search_title'  'a':3 'memoirs':1 'of':2 'roadkill':4
                                   'search_artist'  'diablo':1 'orchestra':3 'swing':2
                                  'search_release'  'along':2 'damned':6 'delirious':7 'for':4 'sing':1 'songs':3 'the':5
                                     'search_rest'  '08':6 'a':9 'and':5 'country':4 'electronic':15,17 'exotica':2 'jazz':1 'jb':12 'memoirs':7 'of':8 'oldies':3 'prerock':11 'roadkill':10 'soft':13 'swing':14,16 'unsorted':18
                                    'search_combo'  '08':20 'a':3A,23 'along':9C 'and':19 'country':18 'damned':13C 'delirious':14C 'diablo':5B 'electronic':29,31 'exotica':16 'for':11C 'jazz':15 'jb':26 'memoirs':1A,21 'of':2A,22 'oldies':17 'orchestra':7B 'prerock':25 'roadkill':4A,24 'sing':8C 'soft':27 'songs':10C 'swing':6B,28,30 'the':12C 'unsorted':32
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'Q-SYN-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['symphonic metal', 'jazz metal', 'metal', 'progressive metal', 'avant garde', 'avant garde metal']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620528453.2546823  (2021-05-09 04:47:33)
                             'size'  6837750