======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '183'
                                          'artist'  'Cotton Pickers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Shufflin' Mose"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'rockblues']"
                                     'discogstags'  "['electric blues', 'blues', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '145.163'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1923'
'TIT2' (Title/songname/content description)         "Shufflin' Mose"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cotton Pickers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electric blues', 'blues', 'rock']
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'rockblues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.575407'

========================== row from database ==========================
                                              'id'  1501480
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1923/Cotton Pickers - Shufflin_ Mose 26-9-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  183
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3682605
                                           'mtime'  1620525129
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1923 Shufflin_ 26 9 1923 prerock jb jazz unsorted
                                      'tag_artist'  Cotton Pickers
                                     'tag_release'  None
                                       'tag_title'  Shufflin' Mose
                                             'bpm'  145.163
                                    'search_title'  'mose':3 'shufflin':1,2
                                   'search_artist'  'cotton':1 'pickers':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1923':6 '26':8 '9':9 'country':4 'exotica':2 'jazz':1 'jb':11 'oldies':3 'prerock':10 'shufflin':7 'unsorted':12
                                    'search_combo'  '00oldiepop':10 '1923':11 '26':13 '9':14 'cotton':4B 'country':9 'exotica':7 'jazz':6 'jb':16 'mose':3A 'oldies':8 'pickers':5B 'prerock':15 'shufflin':1A,2A,12 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['guitar', 'blues', 'rockblues']
                                        'tag_date'  1923
                                     'discogstags'  ['electric blues', 'blues', 'rock']

============================== file details ==============================
                                           'mtime'  1620525129.0758457  (2021-05-09 03:52:09)
                             'size'  3682605