======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '203'
                                          'artist'  'Wayne Newton'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1971'
                                           'title'  "Daddy Don't You Walk So Fast"
                                           'quals'  ("['Q-JZFKS-3', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz', 'vocal jazz', 'pop', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '145.476'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1971'
'TBPM' (BPM (beats per minute))                     '145.476'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         "Daddy Don't You Walk So Fast"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wayne Newton'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'vocal jazz', 'pop', 'oldies', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.541581'

========================== row from database ==========================
                                              'id'  1500912
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1972/010 - Wayne Newton - Daddy Don_t You Walk So Fast.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  203
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  4082324
                                           'mtime'  1620385003
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1972 010 Don_t electronic generic or radio unsorted;set pl billboard
                                      'tag_artist'  Wayne Newton
                                     'tag_release'  Billboard Top Pop Singles of 1971
                                       'tag_title'  Daddy Don't You Walk So Fast
                                             'bpm'  145.476
                                    'search_title'  'daddy':1 'don':2 'dont':4 'fast':8 'so':7 't':3 'walk':6 'you':5
                                   'search_artist'  'newton':2 'wayne':1
                                  'search_release'  '1971':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1972':3 'billboard':15 'don':4 'electronic':6 'generic':7 'or':8 'pl':14 'radio':9 'set':11,13 't':5 'top100':2 'unsorted':10,12
                                    'search_combo'  '00poprockelectronic':17 '1971':16C '1972':19 'billboard':11C,31 'daddy':1A 'don':2A,20 'dont':4A 'electronic':22 'fast':8A 'generic':23 'newton':10B 'of':15C 'or':24 'pl':30 'pop':13C 'radio':25 'set':27,29 'singles':14C 'so':7A 't':3A,21 'top':12C 'top100':18 'unsorted':26,28 'walk':6A 'wayne':9B 'you':5A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'vocal jazz', 'pop', 'oldies', 'swing']
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385003.1389477  (2021-05-07 12:56:43)
                             'size'  4082324