======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '263'
                                          'artist'  'Eminem'
                                     'text_people'  ''
                                         'release'  'The Marshall Mathers LP'
                                           'title'  'Under the Influance'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['pop', 'hip hop', 'rap']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '97.039'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '01-07-2001'
'COMM:ID3v1 Comment:XXX'                            '01-07-2001'
'TALB' (Album/Movie/Show title)                     'The Marshall Mathers LP'
'TBPM' (BPM (beats per minute))                     '97.039'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Under the Influance'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eminem'
'TRCK' (Track number/Position in set)               '17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['pop', 'hip hop', 'rap']
'TXXX:original release date'                        ['2000', '2001']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.434542'

========================== row from database ==========================
                                              'id'  788299
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Eminem/Marschall Mathers/Eminem - Under the Influance.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  263
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  4215093
                                           'mtime'  1620587088
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism Marschall hip hop or rnb or rap or turntablism
                                      'tag_artist'  Eminem
                                     'tag_release'  The Marshall Mathers LP
                                       'tag_title'  Under the Influance
                                             'bpm'  97.039
                                    'search_title'  'influance':3 'the':2 'under':1
                                   'search_artist'  'eminem':1
                                  'search_release'  'lp':4 'marshall':2 'mathers':3 'the':1
                                     'search_rest'  'hip':6 'hiphop':1 'hop':7 'marschall':5 'or':8 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'eminem':4B 'hip':14 'hiphop':9 'hop':15 'influance':3A 'lp':8C 'marschall':13 'marshall':6C 'mathers':7C 'or':16 'rap':10 'rnb':11 'the':2A,5C 'turntablism':12 'under':1A
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'hip hop', 'rap']
                                        'tag_date'  2001
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620587088.2841804  (2021-05-09 21:04:48)
                             'size'  4215093