======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '180'
                                          'artist'  'Swinging Soul Machine'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Spooky's Day Off"
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-3']")
                                      'lastfmtags'  "['the netherlands', 'soul', 'instrumental']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '118.915'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '118.915'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         "Spooky's Day Off"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Swinging Soul Machine'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['the netherlands', 'soul', 'instrumental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.04 dB'
'TXXX:replaygain_track_peak'                        '0.567125'

========================== row from database ==========================
                                              'id'  1515250
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Swinging Soul Machine - Spooky_s Day Off.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  180
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  2896609
                                           'mtime'  1620582468
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Spooky_s electronic generic or radio dance
                                      'tag_artist'  Swinging Soul Machine
                                     'tag_release'  None
                                       'tag_title'  Spooky's Day Off
                                             'bpm'  118.915
                                    'search_title'  'day':4 'off':5 's':2 'spooky':1 'spookys':3
                                   'search_artist'  'machine':3 'soul':2 'swinging':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':7 'generic':2 'or':8 'radio':9 's':6 'spooky':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':9 'dance':11 'day':4A 'electronic':15 'generic':10 'machine':8B 'off':5A 'or':16 'radio':17 's':2A,14 'soul':7B 'spooky':1A,13 'spookys':3A 'swinging':6B 'trapbeat':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['the netherlands', 'soul', 'instrumental']
                                        'tag_date'  
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620582468.4836586  (2021-05-09 19:47:48)
                             'size'  2896609