======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Nullsleep'
                                     'text_people'  ''
                                         'release'  'NES'
                                           'title'  'Galaxy Tonite'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '100.3'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'NES'
'TBPM' (BPM (beats per minute))                     '100.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TIT2' (Title/songname/content description)         'Galaxy Tonite'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nullsleep'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.17 dB'
'TXXX:replaygain_track_peak'                        '0.551998'

========================== row from database ==========================
                                              'id'  148257
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Nullsleep/05-nullsleep-galaxy_tonite.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  3172352
                                           'mtime'  1621705462
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 05 nullsleep galaxy_tonite electronic we beeps or chip or pico
                                      'tag_artist'  Nullsleep
                                     'tag_release'  NES
                                       'tag_title'  Galaxy Tonite
                                             'bpm'  100.3
                                    'search_title'  'galaxy':1 'tonite':2
                                   'search_artist'  'nullsleep':1
                                  'search_release'  'nes':1
                                     'search_rest'  'beeps':6 'chip':8 'electronic':4 'galaxy':2 'nullsleep':1 'or':7 'pico':9 'tonite':3 'we':5
                                    'search_combo'  'beeps':10 'chip':12 'electronic':8 'galaxy':1A,6 'nes':4C 'nullsleep':3B,5 'or':11 'pico':13 'tonite':2A,7 'we':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['8bitpeoples', '8 bit', 'chiptune', '8bit', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621705462.3928213  (2021-05-22 19:44:22)
                             'size'  3172352