======================== unified (from filesystem) ========================
                                         'bitrate'  '255.744'
                                        'duration'  '314'
                                          'artist'  'The Prodigy'
                                     'text_people'  ''
                                         'release'  'Voodoo People Remixes'
                                           'title'  'No Good [CJ Bollands Museum Rmx]'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'dance', 'techno', 'electronic', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '139.948'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Voodoo People Remixes'
'TBPM' (BPM (beats per minute))                     '139.948'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'No Good [CJ Bollands Museum Rmx]'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Prodigy'
'TRCK' (Track number/Position in set)               '03'
'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:lastfmtags'                                   ['industrial', 'dance', 'techno', 'electronic', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.780303'

========================== row from database ==========================
                                              'id'  1286433
                                            'path'  /data/Music/Bulk/00poprockelectronic/Prodigy/#singles/09. Voodoo People (1994)/03 - No Good [CJ Bollands Museum Rmx].mp3
                                         'working'  None
                                         'bitrate'  255
                                    'duration_sec'  314
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  10072694
                                           'mtime'  1621696509
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic #singles 09. (1994) 03 electronic generic or radio bigbeat
                                      'tag_artist'  The Prodigy
                                     'tag_release'  Voodoo People Remixes
                                       'tag_title'  No Good [CJ Bollands Museum Rmx]
                                             'bpm'  139.948
                                    'search_title'  'bollands':5 'cj':3,4 'good':2 'museum':6 'no':1 'rmx':7,8
                                   'search_artist'  'prodigy':2 'the':1
                                  'search_release'  'people':2 'remixes':3 'voodoo':1
                                     'search_rest'  '00poprockelectronic':1 '09':4,5 '1994':6,7 'bigbeat':12 'electronic':8 'generic':9 'or':10 'radio':11 'singles':2,3
                                    'search_combo'  '00poprockelectronic':14 '09':17,18 '1994':19,20 'bigbeat':25 'bollands':5A 'cj':3A,4A 'electronic':21 'generic':22 'good':2A 'museum':6A 'no':1A 'or':23 'people':12C 'prodigy':10B 'radio':24 'remixes':13C 'rmx':7A,8A 'singles':15,16 'the':9B 'voodoo':11C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'dance', 'techno', 'electronic', 'electronica']
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696508.6171372  (2021-05-22 17:15:08)
                             'size'  10072694