======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '283'
                                          'artist'  'Paul Simon'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  "Slip Slidin' Away"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['acoustic', 'rock', 'classic rock', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '48'
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or '
 'radio-unsorted;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock;set-pl-billboard')
                                             'bpm'  '123.181'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '123.181'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'rock-cppex',
 'ifs-songwriter-folk',
 'ifs-songwriter-rock',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         "Slip Slidin' Away"
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Simon'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '48'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['acoustic', 'rock', 'classic rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.694718'

========================== row from database ==========================
                                              'id'  1519650
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1978/048 - Paul Simon - Slip Slidin_ Away.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  283
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock;set-pl-billboard
                                        'filesize'  5666284
                                           'mtime'  1642256383
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1978 048 Slidin_ electronic generic or radio unsorted;rock cppex;ifs songwriter folk;ifs songwriter rock;set pl billboard
                                      'tag_artist'  Paul Simon
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Slip Slidin' Away
                                             'bpm'  123.181
                                    'search_title'  'away':4 'slidin':2,3 'slip':1
                                   'search_artist'  'paul':1 'simon':2
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1978':3 'billboard':27 'cppex':13,15 'electronic':5 'folk':18,20 'generic':6 'ifs':14,16,19,21 'or':7 'pl':26 'radio':8 'rock':10,12,22,24 'set':23,25 'slidin':4 'songwriter':17 'top100':2 'unsorted':9,11
                                    'search_combo'  '00poprockelectronic':13 '1':12C '1978':15 'away':4A 'billboard':7C,39 'cppex':25,27 'electronic':17 'folk':30,32 'generic':18 'ifs':26,28,31,33 'of':11C 'or':19 'paul':5B 'pl':38 'pop':9C 'radio':20 'rock':22,24,34,36 'set':35,37 'simon':6B 'singles':10C 'slidin':2A,3A,16 'slip':1A 'songwriter':29 'top':8C 'top100':14 'unsorted':21,23
                                    'tag_tracknum'  48
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']
                                      'lastfmtags'  ['acoustic', 'rock', 'classic rock', 'folk', 'singer songwriter']
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256382.8944228  (2022-01-15 15:19:42)
                             'size'  5666284