======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '200'
                                          'artist'  "Gilbert O'Sullivan"
                                     'text_people'  ''
                                         'release'  '100 No 1 Hits vol 2'
                                           'title'  'Nothing rhymed'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-UNU-1', 'Q-PLAY-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-vocals-3', 'q-mixbeat-3', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['irish', 'oldies', 'pop', '70s', 'soft rock', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance;ifs-songwriter-pop'
                                             'bpm'  '118.221'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '100 No 1 Hits vol 2'
'TBPM' (BPM (beats per minute))                     '118.221'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-dance', 'ifs-songwriter-pop']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Nothing rhymed'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               "Gilbert O'Sullivan"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['irish', 'oldies', 'pop', '70s', 'soft rock', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.494881'

========================== row from database ==========================
                                              'id'  1517347
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/100 No.1 Hits vol.2/100 No.1 Hits vol.2 cd 4/cd4 05 Gilbert O_Sullivan - Nothing rhymed.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  200
                                           'genre'  electronic-generic or radio-dance;ifs-songwriter-pop
                                        'filesize'  5625978
                                           'mtime'  1642256312
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat No.1 vol.2 No.1 vol.2 cd 4 cd4 05 O_Sullivan electronic generic or radio dance;ifs songwriter pop
                                      'tag_artist'  Gilbert O'Sullivan
                                     'tag_release'  100 No 1 Hits vol 2
                                       'tag_title'  Nothing rhymed
                                             'bpm'  118.221
                                    'search_title'  'nothing':1 'rhymed':2
                                   'search_artist'  'gilbert':1 'o':2 'osullivan':4 'sullivan':3
                                  'search_release'  '1':3 '100':1 '2':6 'hits':4 'no':2 'vol':5
                                     'search_rest'  '00poprockelectronic':1 '1':6 '2':9 '4':12 'cd':11 'cd4':13 'dance':3,19,21 'electronic':16 'generic':2 'ifs':20,22 'no':5 'no1':7 'o':14 'or':17 'pop':24 'radio':18 'songwriter':23 'sullivan':15 'trapbeat':4 'vol':8 'vol2':10
                                    'search_combo'  '00poprockelectronic':13 '1':9C,18 '100':7C '2':12C,21 '4':24 'cd':23 'cd4':25 'dance':15,31,33 'electronic':28 'generic':14 'gilbert':3B 'hits':10C 'ifs':32,34 'no':8C,17 'no1':19 'nothing':1A 'o':4B,26 'or':29 'osullivan':6B 'pop':36 'radio':30 'rhymed':2A 'songwriter':35 'sullivan':5B,27 'trapbeat':16 'vol':11C,20 'vol2':22
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-PLAY-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-chart-3', 'q-drums-2', 'q-other-3', 'q-vocals-3', 'q-mixbeat-3', 'Q-PIANO-2']
                                      'lastfmtags'  ['irish', 'oldies', 'pop', '70s', 'soft rock', 'singer songwriter']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256311.719934  (2022-01-15 15:18:31)
                             'size'  5625978