======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '360'
                                          'artist'  'Stan Bradbury'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Syncopating The Classics (piano solo)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1937'
                                        'comments'  ''
                                           'genre'  'prerock-instrumental'
                                             'bpm'  '126.5'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '126.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-instrumental'
'TDRC' (Recording time)                             '1937-01-21'
'TIT2' (Title/songname/content description)         'Syncopating The Classics (piano solo)'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '360000'
'TPE1' (Lead performer(s)/Soloist(s))               'Stan Bradbury'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'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'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.30 dB'
'TXXX:replaygain_track_peak'                        '0.653997'

========================== row from database ==========================
                                              'id'  1464768
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1937/Stan Bradbury - Syncopating The Classics (piano solo) 21-1-1937.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  360
                                           'genre'  prerock-instrumental
                                        'filesize'  7248763
                                           'mtime'  1621705387
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1937 21 1 1937 prerock instrumental
                                      'tag_artist'  Stan Bradbury
                                     'tag_release'  None
                                       'tag_title'  Syncopating The Classics (piano solo)
                                             'bpm'  126.5
                                    'search_title'  'classics':3 'piano':4,5 'solo':6,7 'syncopating':1 'the':2
                                   'search_artist'  'bradbury':2 'stan':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1':8 '1937':6 '21':7 'country':4 'exotica':2 'instrumental':10 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':14 '1':17 '1937':15 '21':16 'bradbury':9B 'classics':3A 'country':13 'exotica':11 'instrumental':19 'jazz':10 'oldies':12 'piano':4A,5A 'prerock':18 'solo':6A,7A 'stan':8B 'syncopating':1A 'the':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1937
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705387.4714544  (2021-05-22 19:43:07)
                             'size'  7248763