======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '181'
                                          'artist'  'HENRY HALL'
                                     'text_people'  ''
                                         'release'  'Henry Hall (& his BBC Dance Orch)'
                                           'title'  'UNDER THE ARCHES'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'jazz', '30s', 'british', 'classic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '123.557'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Henry Hall (& his BBC Dance Orch)'
'TBPM' (BPM (beats per minute))                     '123.557'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'UNDER THE ARCHES'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'HENRY HALL'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'jazz', '30s', 'british', 'classic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.10 dB'
'TXXX:replaygain_track_peak'                        '0.594363'

========================== row from database ==========================
                                              'id'  1511591
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Henry Hall_s BBC Dance Orchestra, Flanagan & Allen - Underneath the arches (1932).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  prerock-unsorted
                                        'filesize'  2914327
                                           'mtime'  1620385429
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Hall_s Orchestra, Flanagan Allen Underneath the arches (1932) prerock unsorted
                                      'tag_artist'  HENRY HALL
                                     'tag_release'  Henry Hall (& his BBC Dance Orch)
                                       'tag_title'  UNDER THE ARCHES
                                             'bpm'  123.557
                                    'search_title'  'arches':3 'the':2 'under':1
                                   'search_artist'  'hall':2 'henry':1
                                  'search_release'  'bbc':4 'dance':5 'hall':2 'henry':1 'his':3 'orch':6,7
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 '1932':19,20 'allen':15 'and':7 'arches':18 'country':4 'exotica':2 'flanagan':14 'hall':10 'jazz':1 'oldies':3 'orchestra':12,13 'popular':9 'prerock':21 's':11 'the':17 'underneath':16 'unsorted':22
                                    'search_combo'  '00oldiepop':17 '1920s':18 '1930s':20 '1932':31,32 'allen':27 'and':19 'arches':3A,30 'bbc':9C 'country':16 'dance':10C 'exotica':14 'flanagan':26 'hall':5B,7C,22 'henry':4B,6C 'his':8C 'jazz':13 'oldies':15 'orch':11C,12C 'orchestra':24,25 'popular':21 'prerock':33 's':23 'the':2A,29 'under':1A 'underneath':28 'unsorted':34
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['soundtrack', 'jazz', '30s', 'british', 'classic']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385429.2500248  (2021-05-07 13:03:49)
                             'size'  2914327