======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '310'
                                          'artist'  'A Made Up Sound'
                                     'text_people'  ''
                                         'release'  'Dark Techno'
                                           'title'  'Anger Mgmt'
                                           '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'  "['electronic', 'techno', 'dubstep', 'experimental', 'deep house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '125.006'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2011'
'TENC' (Encoded by)                                 'LAME'
'TIT2' (Title/songname/content description)         'Anger Mgmt'
'TKEY' (Initial key)                                '3A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'A Made Up Sound'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'A Made Up Sound'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'techno', 'dubstep', 'experimental', 'deep house']
'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'                        '-2.03 dB'
'TXXX:replaygain_track_peak'                        '0.491956'

========================== row from database ==========================
                                              'id'  1285979
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/A Made Up Sound - Anger Mgmt ss.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  310
                                           'genre'  electronic-th-techno
                                        'filesize'  12427932
                                           'mtime'  1620568795
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ss electronic th techno
                                      'tag_artist'  A Made Up Sound
                                     'tag_release'  Dark Techno
                                       'tag_title'  Anger Mgmt
                                             'bpm'  125.006
                                    'search_title'  'anger':1 'mgmt':2
                                   'search_artist'  'a':1 'made':2 'sound':4 'up':3
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ss':2 'techno':5 'th':4
                                    'search_combo'  '00poprockelectronic':9 'a':3B 'anger':1A 'dark':7C 'electronic':11 'made':4B 'mgmt':2A 'sound':6B 'ss':10 'techno':8C,13 'th':12 'up':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           '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'  ['electronic', 'techno', 'dubstep', 'experimental', 'deep house']
                                        'tag_date'  2011
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568794.777452  (2021-05-09 15:59:54)
                             'size'  12427932