======================== unified (from filesystem) ========================
                                         'bitrate'  '206.823'
                                        'duration'  '296'
                                          'artist'  'Arts The Beatdoctor'
                                     'text_people'  ''
                                         'release'  'Transitions'
                                           'title'  'Remember'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['instrumental hip hop', 'jazz', 'hip hop', 'jazz hop']"
                                     'discogstags'  "['electronic', 'hip hop', 'jazz', 'broken beat', 'future jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '145.267'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000001FF 00000000 00000A12'
'COMM:iTunNORM:eng'                                 (' 000001FF 00000000 00000A12 00000000 000304EA 00000000 00006CFA 00000000 '
 '0003CBEE 00000000')
'TALB' (Album/Movie/Show title)                     'Transitions'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'x'
'TIT2' (Title/songname/content description)         'Remember'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Arts The Beatdoctor'
'TRCK' (Track number/Position in set)               '12'
'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'                                  ['electronic', 'hip hop', 'jazz', 'broken beat', 'future jazz']
'TXXX:lastfmtags'                                   ['instrumental hip hop', 'jazz', 'hip hop', 'jazz hop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.717146'

========================== row from database ==========================
                                              'id'  767228
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Arts the Beatdoctor - REMEMBER.mp3
                                         'working'  None
                                         'bitrate'  206
                                    'duration_sec'  296
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  7673323
                                           'mtime'  1620586871
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism the REMEMBER hip hop rnb rap turntablism
                                      'tag_artist'  Arts The Beatdoctor
                                     'tag_release'  Transitions
                                       'tag_title'  Remember
                                             'bpm'  145.267
                                    'search_title'  'remember':1
                                   'search_artist'  'arts':1 'beatdoctor':3 'the':2
                                  'search_release'  'transitions':1
                                     'search_rest'  'hip':7 'hiphop':1 'hop':8 'rap':2 'remember':6 'rnb':3 'the':5 'turntablism':4
                                    'search_combo'  'arts':2B 'beatdoctor':4B 'hip':12 'hiphop':6 'hop':13 'rap':7 'remember':1A,11 'rnb':8 'the':3B,10 'transitions':5C 'turntablism':9
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-1', '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-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental hip hop', 'jazz', 'hip hop', 'jazz hop']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic', 'hip hop', 'jazz', 'broken beat', 'future jazz']

============================== file details ==============================
                                           'mtime'  1620586870.9480298  (2021-05-09 21:01:10)
                             'size'  7673323