======================== unified (from filesystem) ========================
                                         'bitrate'  '202.666'
                                        'duration'  '400'
                                          'artist'  'Evol Intent'
                                     'text_people'  ''
                                         'release'  'Police State EP'
                                           'title'  'Street Knowledge'
                                           '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-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '116.120'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Police State EP'
'TBPM' (BPM (beats per minute))                     '116.120'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Street Knowledge'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Evol Intent'
'TRCK' (Track number/Position in set)               '4'
'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', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.11 dB'
'TXXX:replaygain_track_peak'                        '0.605823'

========================== row from database ==========================
                                              'id'  1286114
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Evol Intent/04-evol_intent-street_knowledge.mp3
                                         'working'  None
                                         'bitrate'  202
                                    'duration_sec'  400
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  10163550
                                           'mtime'  1621696531
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 04 evol_intent street_knowledge electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Evol Intent
                                     'tag_release'  Police State EP
                                       'tag_title'  Street Knowledge
                                             'bpm'  116.12
                                    'search_title'  'knowledge':2 'street':1
                                   'search_artist'  'evol':1 'intent':2
                                  'search_release'  'ep':3 'police':1 'state':2
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'breakbeat':9 'dnb':11 'electronic':7 'evol':3 'intent':4 'jungle':12 'knowledge':6 'or':10 'street':5 'th':8
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 'breakbeat':16 'dnb':18 'electronic':14 'ep':7C 'evol':3B,10 'intent':4B,11 'jungle':19 'knowledge':2A,13 'or':17 'police':5C 'state':6C 'street':1A,12 'th':15
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'neurofunk', 'drum n bass', 'darkstep', 'dnb']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696531.1482606  (2021-05-22 17:15:31)
                             'size'  10163550