======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '564'
                                          'artist'  'Sugarhill Gang'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Rapper'S Delight"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['hip-hop', 'rap', 'old school', 'hip hop', '80s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '111.455'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '111.455'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TIT2' (Title/songname/content description)         "Rapper'S Delight"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sugarhill Gang'
'TXXX:Mp3gain_minmax'                               '107,184'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'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:lastfmtags'                                   ['hip-hop', 'rap', 'old school', 'hip hop', '80s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.420468'

========================== row from database ==========================
                                              'id'  1500163
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Sugarhill Gang - Rapper_S Delight.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  564
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  9029963
                                           'mtime'  1620573000
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Rapper_S hip hop or rnb or rap or turntablism
                                      'tag_artist'  Sugarhill Gang
                                     'tag_release'  None
                                       'tag_title'  Rapper'S Delight
                                             'bpm'  111.455
                                    'search_title'  'delight':4 'rapper':1 'rappers':3 's':2
                                   'search_artist'  'gang':2 'sugarhill':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'hip':9 'hop':10 'loose':3,4 'or':11 'rap':13 'rapper':7 'rnb':12 's':8 'turntablism':14 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'delight':4A 'files':11,12 'gang':6B 'hip':15 'hop':16 'loose':9,10 'or':17 'rap':19 'rapper':1A,13 'rappers':3A 'rnb':18 's':2A,14 'sugarhill':5B 'turntablism':20 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-4', '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-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'rap', 'old school', 'hip hop', '80s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573000.0178854  (2021-05-09 17:10:00)
                             'size'  9029963