======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '289'
                                          'artist'  'Skeewiff'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'unlimited touch'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', "
 "'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', "
 "'q-vocals-2']")
                                      'lastfmtags'  "['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '128.170'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.170'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TIT2' (Title/songname/content description)         'unlimited touch'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skeewiff'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.62 dB'
'TXXX:replaygain_track_peak'                        '0.435480'

========================== row from database ==========================
                                              'id'  1351728
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Skeewiff/skeewiff-watermelonman.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  289
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  6961024
                                           'mtime'  1639842738
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb skeewiff watermelonman electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Skeewiff
                                     'tag_release'  None
                                       'tag_title'  unlimited touch
                                             'bpm'  128.17
                                    'search_title'  'touch':2 'unlimited':1
                                   'search_artist'  'skeewiff':1
                                  'search_release'  
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'breakbeat':7 'dnb':9 'electronic':5 'jungle':10 'or':8 'skeewiff':3 'th':6 'watermelonman':4
                                    'search_combo'  '00dnb':5 '00poprockelectronic':4 'breakbeat':10 'dnb':12 'electronic':8 'jungle':13 'or':11 'skeewiff':3B,6 'th':9 'touch':2A 'unlimited':1A 'watermelonman':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['breakbeat', 'lounge', 'electronic', 'big beat', 'funk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1639842738.1929123  (2021-12-18 16:52:18)
                             'size'  6961024