======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '268'
                                          'artist'  'Rod Stewart'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1978'
                                           'title'  "Your'e in My Heart"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', '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'  "['soft rock', 'rock', 'pop', '70s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '37'
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard'
                                             'bpm'  '104.175'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1978'
'TBPM' (BPM (beats per minute))                     '104.175'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'rock-cppex',
 'rock-cppex',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         "Your'e in My Heart"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rod Stewart'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '37'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soft rock', 'rock', 'pop', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'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'                        '+1.23 dB'
'TXXX:replaygain_track_peak'                        '0.777358'

========================== row from database ==========================
                                              'id'  1517308
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1978/037 - Rod Stewart - Your_e in My Heart.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  268
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard
                                        'filesize'  5373397
                                           'mtime'  1620737143
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 037 Your_e electronic generic or radio unsorted;rock cppex;set pl billboard
                                      'tag_artist'  Rod Stewart
                                     'tag_release'  Billboard Top Pop Singles of 1978
                                       'tag_title'  Your'e in My Heart
                                             'bpm'  104.175
                                    'search_title'  'e':2 'heart':6 'in':4 'my':5 'your':1 'youre':3
                                   'search_artist'  'rod':1 'stewart':2
                                  'search_release'  '1978':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':18 'cppex':13,15 'e':4 'electronic':5 'generic':6 'or':7 'pl':17 'radio':8 'rock':10,12 'set':14,16 'top100':2 'unsorted':9,11 'your':3
                                    'search_combo'  '00poprockelectronic':15 '1978':14C 'billboard':9C,32 'cppex':27,29 'e':2A,18 'electronic':19 'generic':20 'heart':6A 'in':4A 'my':5A 'of':13C 'or':21 'pl':31 'pop':11C 'radio':22 'rock':24,26 'rod':7B 'set':28,30 'singles':12C 'stewart':8B 'top':10C 'top100':16 'unsorted':23,25 'your':1A,17 'youre':3A
                                    'tag_tracknum'  37
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soft rock', 'rock', 'pop', '70s', 'classic rock']
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737142.6192641  (2021-05-11 14:45:42)
                             'size'  5373397