======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'Ray Noble'
                                     'text_people'  ''
                                         'release'  'HMV B-6347'
                                           'title'  "Maybe It's Because I Love You Too Much (vocal - Al Bowlly)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', 'orchestral jazz']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '103.2'
                                             'key'  '7B'
                                        '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)                     'HMV B-6347'
'TBPM' (BPM (beats per minute))                     '103.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1933-05-03'
'TIT2' (Title/songname/content description)         "Maybe It's Because I Love You Too Much (vocal - Al Bowlly)"
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '194000'
'TPE1' (Lead performer(s)/Soloist(s))               'Ray Noble'
'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:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['all', 'jazz', 'orchestral jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.677587'

========================== row from database ==========================
                                              'id'  1509791
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Ray Noble - Maybe It_s Because I Love You Too Much (vocal - Al Bowlly) 3-5-1933.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  prerock-band
                                        'filesize'  3176654
                                           'mtime'  1620560155
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 It_s 5 1933 prerock band
                                      'tag_artist'  Ray Noble
                                     'tag_release'  HMV B-6347
                                       'tag_title'  Maybe It's Because I Love You Too Much (vocal - Al Bowlly)
                                             'bpm'  103.2
                                    'search_title'  'al':13 'because':5 'bowlly':14,15 'i':6 'it':2 'its':4 'love':7 'maybe':1 'much':10 's':3 'too':9 'vocal':11,12 'you':8
                                   'search_artist'  'noble':2 'ray':1
                                  'search_release'  '6347':3 'b':2 'b6347':4 'hmv':1
                                     'search_rest'  '00oldiepop':5 '1933':6 '5':9 'band':11 'country':4 'exotica':2 'it':7 'jazz':1 'oldies':3 'prerock':10 's':8
                                    'search_combo'  '00oldiepop':26 '1933':27 '5':30 '6347':20C 'al':13A 'b':19C 'b6347':21C 'band':32 'because':5A 'bowlly':14A,15A 'country':25 'exotica':23 'hmv':18C 'i':6A 'it':2A,28 'its':4A 'jazz':22 'love':7A 'maybe':1A 'much':10A 'noble':17B 'oldies':24 'prerock':31 'ray':16B 's':3A,29 'too':9A 'vocal':11A,12A 'you':8A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['all', 'jazz', 'orchestral jazz']
                                        'tag_date'  1933
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620560155.4677105  (2021-05-09 13:35:55)
                             'size'  3176654