======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '155'
                                          'artist'  'Oscars Chicago Swingers'
                                     'text_people'  ''
                                         'release'  'Geil & Sexy - Copulation Blues'
                                           'title'  'New Rubbin On That Darn Old Thing'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'jazz', 'blues', 'all', '1920-1940']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '85.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Geil & Sexy - Copulation Blues'
'TBPM' (BPM (beats per minute))                     '85.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         'New Rubbin On That Darn Old Thing'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Oscars Chicago Swingers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'jazz', 'blues', 'all', '1920-1940']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.18 dB'
'TXXX:replaygain_track_peak'                        '0.306952'

========================== row from database ==========================
                                              'id'  1377699
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Bob Howe & Frankie Giggs - Flashbacks - 1920s-1940 2. Geil & Sexy - Copulation Blues/02 - Oscars Chicago Swingers - New Rubbin On That Darn Old Thing.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  155
                                           'genre'  prerock-jb-blues
                                        'filesize'  2498452
                                           'mtime'  1620402239
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Bob Howe Frankie Giggs Flashbacks 1920s 1940 2. 02 prerock jb blues
                                      'tag_artist'  Oscars Chicago Swingers
                                     'tag_release'  Geil & Sexy - Copulation Blues
                                       'tag_title'  New Rubbin On That Darn Old Thing
                                             'bpm'  85.0
                                    'search_title'  'darn':5 'new':1 'old':6 'on':3 'rubbin':2 'that':4 'thing':7
                                   'search_artist'  'chicago':2 'oscars':1 'swingers':3
                                  'search_release'  'blues':4 'copulation':3 'geil':1 'sexy':2
                                     'search_rest'  '1920s':10 '1940':11 '2':12,13 'blues':16 'bob':5 'country':4 'exotica':2 'flashbacks':9 'frankie':7 'giggs':8 'howe':6 'jazz':1 'jb':15 'oldies':3 'prerock':14
                                    'search_combo'  '1920s':24 '1940':25 '2':26,27 'blues':14C,30 'bob':19 'chicago':9B 'copulation':13C 'country':18 'darn':5A 'exotica':16 'flashbacks':23 'frankie':21 'geil':11C 'giggs':22 'howe':20 'jazz':15 'jb':29 'new':1A 'old':6A 'oldies':17 'on':3A 'oscars':8B 'prerock':28 'rubbin':2A 'sexy':12C 'swingers':10B 'that':4A 'thing':7A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['spotify', 'jazz', 'blues', 'all', '1920-1940']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402239.0264645  (2021-05-07 17:43:59)
                             'size'  2498452