======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '367'
                                          'artist'  'Bas Mooy'
                                     'text_people'  ''
                                         'release'  'Dark Techno'
                                           'title'  'Rage DT'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dark techno', 'techno', 'hard techno', 'industrial techno']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '128.986'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '128.986'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Rage DT'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bas Mooy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['dark techno', 'techno', 'hard techno', 'industrial techno']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.14 dB'
'TXXX:replaygain_track_peak'                        '0.454102'

========================== row from database ==========================
                                              'id'  1289738
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/Bas Mooy - Rage ss.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  367
                                           'genre'  electronic-th-techno
                                        'filesize'  14702236
                                           'mtime'  1620568806
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ss electronic th techno
                                      'tag_artist'  Bas Mooy
                                     'tag_release'  Dark Techno
                                       'tag_title'  Rage DT
                                             'bpm'  128.986
                                    'search_title'  'dt':2 'rage':1
                                   'search_artist'  'bas':1 'mooy':2
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ss':2 'techno':5 'th':4
                                    'search_combo'  '00poprockelectronic':7 'bas':3B 'dark':5C 'dt':2A 'electronic':9 'mooy':4B 'rage':1A 'ss':8 'techno':6C,11 'th':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dark techno', 'techno', 'hard techno', 'industrial techno']
                                        'tag_date'  2005
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1620568806.2434466  (2021-05-09 16:00:06)
                             'size'  14702236