======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '242'
                                          'artist'  'Henry Burr'
                                     'text_people'  ''
                                         'release'  'Edison Amberol   730'
                                           'title'  "Harp That Once Thro' Tara's Halls (+ Chorus)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1900s', 'all', 'pop', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1911'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '85.1'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Edison Amberol   730'
'TBPM' (BPM (beats per minute))                     '85.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1911'
'TIT2' (Title/songname/content description)         "Harp That Once Thro' Tara's Halls (+ Chorus)"
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '242000'
'TPE1' (Lead performer(s)/Soloist(s))               'Henry Burr'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1900s', 'all', 'pop', 'oldies', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.623379'

========================== row from database ==========================
                                              'id'  1500849
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1911/Henry Burr - Harp That Once Thro_ Tara_s Halls (+ Chorus) 1911.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  242
                                           'genre'  prerock-vocal
                                        'filesize'  4946714
                                           'mtime'  1620666098
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1911 Thro_ Tara_s 1911 prerock vocal
                                      'tag_artist'  Henry Burr
                                     'tag_release'  Edison Amberol   730
                                       'tag_title'  Harp That Once Thro' Tara's Halls (+ Chorus)
                                             'bpm'  85.1
                                    'search_title'  'chorus':10,11 'halls':9 'harp':1 'once':3 's':7 'tara':6 'taras':8 'that':2 'thro':4,5
                                   'search_artist'  'burr':2 'henry':1
                                  'search_release'  '730':3 'amberol':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1911':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 's':9 'tara':8 'thro':7 'vocal':11
                                    'search_combo'  '00oldiepop':21 '1911':22 '730':16C 'amberol':15C 'burr':13B 'chorus':10A,11A 'country':20 'edison':14C 'exotica':18 'halls':9A 'harp':1A 'henry':12B 'jazz':17 'oldies':19 'once':3A 'prerock':26 's':7A,25 'tara':6A,24 'taras':8A 'that':2A 'thro':4A,5A,23 'vocal':27
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1900s', 'all', 'pop', 'oldies', 'swing']
                                        'tag_date'  1911
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666097.5163338  (2021-05-10 19:01:37)
                             'size'  4946714