======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '180'
                                          'artist'  'The California Ramblers'
                                     'text_people'  ''
                                         'release'  "1920's rare and popular music"
                                           'title'  'Tiptoe Through the Tulips'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'dixieland', 'swing', 'all', '20s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands;prerock-vocal'
                                             'bpm'  '92.899'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "1920's rare and popular music"
'TBPM' (BPM (beats per minute))                     '92.899'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-netherlands', 'prerock-vocal']
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         'Tiptoe Through the Tulips'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'The California Ramblers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'dixieland', 'swing', 'all', '20s']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.501053'

========================== row from database ==========================
                                              'id'  1142613
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/The California Ramblers - Tiptoe Through the Tulips.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  180
                                           'genre'  loc-eur-netherlands;prerock-vocal
                                        'filesize'  2963456
                                           'mtime'  1621627111
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s loc eur netherlands;prerock vocal
                                      'tag_artist'  The California Ramblers
                                     'tag_release'  1920's rare and popular music
                                       'tag_title'  Tiptoe Through the Tulips
                                             'bpm'  92.899
                                    'search_title'  'the':3 'through':2 'tiptoe':1 'tulips':4
                                   'search_artist'  'california':2 'ramblers':3 'the':1
                                  'search_release'  '1920':1 '1920s':3 'and':5 'music':7 'popular':6 'rare':4 's':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'eur':9 'exotica':2 'jazz':1 'loc':8 'netherlands':10,12 'oldies':3 'prerock':11,13 'vocal':14
                                    'search_combo'  '00oldiepop':19 '1920':8C '1920s':10C,20 '1930s':21 'and':12C 'california':6B 'country':18 'eur':23 'exotica':16 'jazz':15 'loc':22 'music':14C 'netherlands':24,26 'oldies':17 'popular':13C 'prerock':25,27 'ramblers':7B 'rare':11C 's':9C 'the':3A,5B 'through':2A 'tiptoe':1A 'tulips':4A 'vocal':28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'dixieland', 'swing', 'all', '20s']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627110.8871427  (2021-05-21 21:58:30)
                             'size'  2963456