======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '189'
                                          'artist'  "Charles Prince's Band"
                                     'text_people'  ''
                                         'release'  'Columbia  2354 (77248)'
                                           'title'  'Departure Of American Troops For France (v - Columbia Qt)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', '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-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1917'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '125.8'
                                             'key'  '6A'
                                        '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)                     'Columbia  2354 (77248)'
'TBPM' (BPM (beats per minute))                     '125.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1917-08'
'TIT2' (Title/songname/content description)         'Departure Of American Troops For France (v - Columbia Qt)'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '189000'
'TPE1' (Lead performer(s)/Soloist(s))               "Charles Prince's Band"
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.512974'

========================== row from database ==========================
                                              'id'  1519155
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1917/Charles Prince_s Band - Departure Of American Troops For France (v - Columbia Qt) -8-1917.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  189
                                           'genre'  prerock-band
                                        'filesize'  3908065
                                           'mtime'  1620559579
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1917 Prince_s 1917 prerock band
                                      'tag_artist'  Charles Prince's Band
                                     'tag_release'  Columbia  2354 (77248)
                                       'tag_title'  Departure Of American Troops For France (v - Columbia Qt)
                                             'bpm'  125.8
                                    'search_title'  'american':3 'columbia':9 'departure':1 'for':5 'france':6 'of':2 'qt':10,11 'troops':4 'v':7,8
                                   'search_artist'  'band':5 'charles':1 'prince':2 'princes':4 's':3
                                  'search_release'  '2354':2 '77248':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1917':6 'band':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'prince':7 's':8
                                    'search_combo'  '00oldiepop':25 '1917':26 '2354':18C '77248':19C,20C 'american':3A 'band':16B,30 'charles':12B 'columbia':9A,17C 'country':24 'departure':1A 'exotica':22 'for':5A 'france':6A 'jazz':21 'of':2A 'oldies':23 'prerock':29 'prince':13B,27 'princes':15B 'qt':10A,11A 's':14B,28 'troops':4A 'v':7A,8A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           '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-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1917
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559578.7804427  (2021-05-09 13:26:18)
                             'size'  3908065