======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '181'
                                          'artist'  "Rudy Wiedoeft's Palace Trio"
                                     'text_people'  ''
                                         'release'  'Cardinal 2014'
                                           'title'  'Show Me How'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', '1920s', 'novelty', 'ragtime', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1920'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '86.401'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cardinal 2014'
'TBPM' (BPM (beats per minute))                     '86.401'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1920'
'TIT2' (Title/songname/content description)         'Show Me How'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               "Rudy Wiedoeft's Palace Trio"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', '1920s', 'novelty', 'ragtime', 'pop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.656509'

========================== row from database ==========================
                                              'id'  1502264
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920/Rudy Wiedoeft_s Palace Trio - Show Me How 1920.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  181
                                           'genre'  prerock-ragtime
                                        'filesize'  3629405
                                           'mtime'  1620527045
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920 Wiedoeft_s 1920 prerock ragtime
                                      'tag_artist'  Rudy Wiedoeft's Palace Trio
                                     'tag_release'  Cardinal 2014
                                       'tag_title'  Show Me How
                                             'bpm'  86.401
                                    'search_title'  'how':3 'me':2 'show':1
                                   'search_artist'  'palace':5 'rudy':1 's':3 'trio':6 'wiedoeft':2 'wiedoefts':4
                                  'search_release'  '2014':2 'cardinal':1
                                     'search_rest'  '00oldiepop':5 '1920':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'ragtime':10 's':8 'wiedoeft':7
                                    'search_combo'  '00oldiepop':16 '1920':17 '2014':11C 'cardinal':10C 'country':15 'exotica':13 'how':3A 'jazz':12 'me':2A 'oldies':14 'palace':8B 'prerock':20 'ragtime':21 'rudy':4B 's':6B,19 'show':1A 'trio':9B 'wiedoeft':5B,18 'wiedoefts':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', '1920s', 'novelty', 'ragtime', 'pop']
                                        'tag_date'  1920
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527044.884303  (2021-05-09 04:24:04)
                             'size'  3629405