======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '316'
                                          'artist'  'Atari Teenage Riot'
                                     'text_people'  ''
                                         'release'  'Delete Yourself'
                                           'title'  'Hetzjagd Auf Nazis! (Live)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '102.3'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Delete Yourself'
'TBPM' (BPM (beats per minute))                     '102.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Hetzjagd Auf Nazis! (Live)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Atari Teenage Riot'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.96 dB'
'TXXX:replaygain_track_peak'                        '0.540233'

========================== row from database ==========================
                                              'id'  1355871
                                            'path'  /data/Music/Bulk/00poprockelectronic/ATR (atari teenage riot)/ATR - delete yourself/Atari Teenage Riot - Delete Yourself - 08 - Hetzjagd Auf Nazis! (Live).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  316
                                           'genre'  rock-gr-punk
                                        'filesize'  7596004
                                           'mtime'  1622659238
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ATR (atari teenage riot) ATR delete yourself 08 rock gr punk
                                      'tag_artist'  Atari Teenage Riot
                                     'tag_release'  Delete Yourself
                                       'tag_title'  Hetzjagd Auf Nazis! (Live)
                                             'bpm'  102.3
                                    'search_title'  'auf':2 'hetzjagd':1 'live':4,5 'nazis':3
                                   'search_artist'  'atari':1 'riot':3 'teenage':2
                                  'search_release'  'delete':1 'yourself':2
                                     'search_rest'  '00poprockelectronic':1 'atari':3,4 'atr':2 'delete':8 'gr':11 'punk':12 'riot':6,7 'rock':10 'teenage':5 'yourself':9
                                    'search_combo'  '00poprockelectronic':11 'atari':6B,13,14 'atr':12 'auf':2A 'delete':9C,18 'gr':21 'hetzjagd':1A 'live':4A,5A 'nazis':3A 'punk':22 'riot':8B,16,17 'rock':20 'teenage':7B,15 'yourself':10C,19
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['punk', 'digital hardcore', 'industrial', 'electronic', 'hardcore']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1622659237.8601193  (2021-06-02 20:40:37)
                             'size'  7596004