======================== unified (from filesystem) ========================
                                         'bitrate'  '199.495'
                                        'duration'  '359'
                                          'artist'  'George Clinton'
                                     'text_people'  ''
                                         'release'  "Greatest Funkin' Hits"
                                           'title'  'Mothership Connection: Starchild (The Second Coming)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'jazz', 'p funk', 'soul', 'funk']"
                                     'discogstags'  "['electronic', 'hip hop', 'funk / soul', 'p.funk', 'electro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '93.673'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Greatest Funkin' Hits"
'TBPM' (BPM (beats per minute))                     '93.673'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Mothership Connection: Starchild (The Second Coming)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'George Clinton'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'hip hop', 'funk / soul', 'p.funk', 'electro']
'TXXX:lastfmtags'                                   ['reggae', 'jazz', 'p funk', 'soul', 'funk']
'TXXX:original release date'                        ['1996', '1996']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+6.23 dB'
'TXXX:replaygain_track_peak'                        '0.224718'

========================== row from database ==========================
                                              'id'  1516505
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/George Clinton Greatest Funkin_ Hits [12] Mothership Connection Starchild (The Second Coming).mp3
                                         'working'  None
                                         'bitrate'  199
                                    'duration_sec'  359
                                           'genre'  funk or soul
                                        'filesize'  8962748
                                           'mtime'  1621696505
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Funkin_ [12] funk soul
                                      'tag_artist'  George Clinton
                                     'tag_release'  Greatest Funkin' Hits
                                       'tag_title'  Mothership Connection: Starchild (The Second Coming)
                                             'bpm'  93.673
                                    'search_title'  'coming':8,9 'connection':2,3 'mothership':1 'second':7 'starchild':4 'the':5,6
                                   'search_artist'  'clinton':2 'george':1
                                  'search_release'  'funkin':2,3 'greatest':1 'hits':4
                                     'search_rest'  '00poprockelectronic':1 '12':8,9 'files':5,6 'funk':10 'funkin':7 'loose':3,4 'soul':11 'unsorted':2
                                    'search_combo'  '00poprockelectronic':16 '12':23,24 'clinton':11B 'coming':8A,9A 'connection':2A,3A 'files':20,21 'funk':25 'funkin':13C,14C,22 'george':10B 'greatest':12C 'hits':15C 'loose':18,19 'mothership':1A 'second':7A 'soul':26 'starchild':4A 'the':5A,6A 'unsorted':17
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'jazz', 'p funk', 'soul', 'funk']
                                        'tag_date'  1996
                                     'discogstags'  ['electronic', 'hip hop', 'funk / soul', 'p.funk', 'electro']

============================== file details ==============================
                                           'mtime'  1621696504.5595744  (2021-05-22 17:15:04)
                             'size'  8962748