======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '243'
                                          'artist'  'Coolio'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  "Gangsta's Paradise"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'west coast rap', 'hip hop', 'rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or radio-unsorted;hip hop or rnb or rap or '
 'turntablism;set-pl-billboard')
                                             'bpm'  '106.812'
                                             'key'  '5A'
                                        '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))                     '106.812'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'hip hop or rnb or rap or turntablism',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "Gangsta's Paradise"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Coolio'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['90s', 'west coast rap', 'hip hop', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.882044'

========================== row from database ==========================
                                              'id'  1505209
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1995__001 - Coolio - Gangsta_s Paradise.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  243
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism;set-pl-billboard
                                        'filesize'  3891222
                                           'mtime'  1620533476
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1995__001 Gangsta_s electronic generic or radio unsorted;hip hop or rnb or rap or turntablism;set pl billboard
                                      'tag_artist'  Coolio
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Gangsta's Paradise
                                             'bpm'  106.812
                                    'search_title'  'gangsta':1 'gangstas':3 'paradise':4 's':2
                                   'search_artist'  'coolio':1
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '001':4 '00poprockelectronic':1 '1995':3 'billboard':23 'electronic':7 'gangsta':5 'generic':8 'hip':12,14 'hop':15 'or':9 'pl':22 'radio':10 'rap':17 'rnb':16 's':6 'set':19,21 'top100':2 'turntablism':18,20 'unsorted':11,13
                                    'search_combo'  '001':15 '00poprockelectronic':12 '1':11C '1995':14 'billboard':6C,34 'coolio':5B 'electronic':18 'gangsta':1A,16 'gangstas':3A 'generic':19 'hip':23,25 'hop':26 'of':10C 'or':20 'paradise':4A 'pl':33 'pop':8C 'radio':21 'rap':28 'rnb':27 's':2A,17 'set':30,32 'singles':9C 'top':7C 'top100':13 'turntablism':29,31 'unsorted':22,24
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'west coast rap', 'hip hop', 'rap']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533476.4439564  (2021-05-09 06:11:16)
                             'size'  3891222