======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '426'
                                          'artist'  'RAM Trilogy'
                                     'text_people'  ''
                                         'release'  'Molten Beats LP'
                                           'title'  'System Error (Y2k)'
                                           '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-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']"
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '87.445'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Molten Beats LP'
'TBPM' (BPM (beats per minute))                     '87.445'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'System Error (Y2k)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'RAM Trilogy'
'TRCK' (Track number/Position in set)               '9'
'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', 'drum n bass']
'TXXX:lastfmtags'                                   ['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.396525'

========================== row from database ==========================
                                              'id'  1364740
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Ram Trilogy/ram trilogy - molten beats/RAM Trilogy - System___r (Y2k) (Molte___ats LP).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  426
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  8544102
                                           'mtime'  1621696633
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb Ram ram trilogy molten beats System___r (Molte___ats LP) electronic th breakbeat dnb jungle
                                      'tag_artist'  RAM Trilogy
                                     'tag_release'  Molten Beats LP
                                       'tag_title'  System Error (Y2k)
                                             'bpm'  87.445
                                    'search_title'  'error':2 'system':1 'y2k':3,4
                                   'search_artist'  'ram':1 'trilogy':2
                                  'search_release'  'beats':2 'lp':3 'molten':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'ats':10,12 'beats':6 'breakbeat':17 'dnb':18 'electronic':15 'jungle':19 'lp':13,14 'molte':9,11 'molten':5 'r':8 'ram':3 'system':7 'th':16 'trilogy':4
                                    'search_combo'  '00dnb':11 '00poprockelectronic':10 'ats':19,21 'beats':8C,15 'breakbeat':26 'dnb':27 'electronic':24 'error':2A 'jungle':28 'lp':9C,22,23 'molte':18,20 'molten':7C,14 'r':17 'ram':5B,12 'system':1A,16 'th':25 'trilogy':6B,13 'y2k':3A,4A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['drum and bass', 'drum n bass', 'jungle', 'electronic', 'dnb']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1621696633.4920058  (2021-05-22 17:17:13)
                             'size'  8544102