======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '138'
                                          'artist'  'E-Z Rollers'
                                     'text_people'  ''
                                         'release'  'Serve Chilled (Disc 1)'
                                           'title'  'Walk This Land'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '85.166'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Serve Chilled (Disc 1)'
'TBPM' (BPM (beats per minute))                     '85.166'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-breakbeat or dnb or jungle',
 'electronic-th-breakbeat or dnb or jungle']
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Walk This Land'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'E-Z Rollers'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.30 dB'
'TXXX:replaygain_track_peak'                        '0.488833'

========================== row from database ==========================
                                              'id'  1291335
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/E-Z Rollers/Ez Rollers - Dimensions Of Sound/Ez Rollers - Dimensions Of Sound/E-Z Rollers - Walk This Land (Smoking Barrel Mix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  138
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  2222647
                                           'mtime'  1621696520
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb Ez Dimensions Of Sound Ez Dimensions Of Sound (Smoking Barrel Mix) electronic th breakbeat or dnb or jungle
                                      'tag_artist'  E-Z Rollers
                                     'tag_release'  Serve Chilled (Disc 1)
                                       'tag_title'  Walk This Land
                                             'bpm'  85.166
                                    'search_title'  'land':3 'this':2 'walk':1
                                   'search_artist'  'e':1 'ez':3 'rollers':4 'z':2
                                  'search_release'  '1':5,6 'chilled':2 'disc':3,4 'serve':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'barrel':9 'breakbeat':14 'dimensions':4 'dnb':16 'electronic':12 'ez':3 'jungle':17 'mix':10,11 'of':5 'or':15 'smoking':7,8 'sound':6 'th':13
                                    'search_combo'  '00dnb':15 '00poprockelectronic':14 '1':12C,13C 'barrel':22 'breakbeat':27 'chilled':9C 'dimensions':17 'disc':10C,11C 'dnb':29 'e':4B 'electronic':25 'ez':6B,16 'jungle':30 'land':3A 'mix':23,24 'of':18 'or':28 'rollers':7B 'serve':8C 'smoking':20,21 'sound':19 'th':26 'this':2A 'walk':1A 'z':5B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696519.6408744  (2021-05-22 17:15:19)
                             'size'  2222647