======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '60'
                                          'artist'  'Peverelist'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "'The Grind' "
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['electronic', 'dub', 'dubstep', 'minimal', 'dub techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '138.0'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '138.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         "'The Grind' "
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peverelist'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'dub', 'dubstep', 'minimal', 'dub techno']
'TXXX:other'                                        '6694923'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.49 dB'
'TXXX:replaygain_track_peak'                        '1.082912'

========================== row from database ==========================
                                              'id'  1505668
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/punchdrunkrecords/Peverelist _The Grind_ Punch Drunk Records-6694923.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  60
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  973465
                                           'mtime'  1621085003
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud punchdrunkrecords _The Grind_ Punch Drunk Records 6694923 electronic th techno minimal or deephouse
                                      'tag_artist'  Peverelist
                                     'tag_release'  None
                                       'tag_title'  'The Grind' 
                                             'bpm'  138.0
                                    'search_title'  'grind':3,4 'the':1,2
                                   'search_artist'  'peverelist':1
                                  'search_release'  
                                     'search_rest'  '6694923':8 'deephouse':14 'drunk':6 'electronic':9 'grind':4 'minimal':12 'or':13 'punch':5 'punchdrunkrecords':2 'records':7 'soundcloud':1 'techno':11 'th':10 'the':3
                                    'search_combo'  '6694923':13 'deephouse':19 'drunk':11 'electronic':14 'grind':3A,4A,9 'minimal':17 'or':18 'peverelist':5B 'punch':10 'punchdrunkrecords':7 'records':12 'soundcloud':6 'techno':16 'th':15 'the':1A,2A,8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'dub', 'dubstep', 'minimal', 'dub techno']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085003.388392  (2021-05-15 15:23:23)
                             'size'  973465