======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '418'
                                          'artist'  'U.S.B.'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Habitat'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                     'discogstags'  "['hard rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '116.253'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TBPM' (BPM (beats per minute))                     '116.253'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TIT2' (Title/songname/content description)         'Habitat'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'U.S.B.'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '139,194'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hard rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.435499'

========================== row from database ==========================
                                              'id'  1534615
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Usb-Habitat.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  418
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  6725332
                                           'mtime'  1621696363
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA Usb electronic th breakbeat or dnb or jungle
                                      'tag_artist'  U.S.B.
                                     'tag_release'  None
                                       'tag_title'  Habitat
                                             'bpm'  116.253
                                    'search_title'  'habitat':1
                                   'search_artist'  'b':3 's':2 'u':1 'usb':4
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'breakbeat':6 'dnb':8 'electronic':4 'jungle':9 'or':7 'th':5 'usb':3 'va':2
                                    'search_combo'  '00poprockelectronic':6 'b':4B 'breakbeat':11 'dnb':13 'electronic':9 'habitat':1A 'jungle':14 'or':12 's':3B 'th':10 'u':2B 'usb':5B,8 'va':7
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  ['hard rock', 'rock']

============================== file details ==============================
                                           'mtime'  1621696362.7368782  (2021-05-22 17:12:42)
                             'size'  6725332