======================== unified (from filesystem) ========================
                                         'bitrate'  '170.153'
                                        'duration'  '407'
                                          'artist'  'Erotic Dream'
                                     'text_people'  ''
                                         'release'  'Progressive Sensations'
                                           'title'  'My Strange Extremities'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  ("['psy', 'progressive psytrance', 'electronic', 'progressive trance', "
 "'psytrance']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '132.012'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progressive Sensations'
'TBPM' (BPM (beats per minute))                     '132.012'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'My Strange Extremities'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Erotic Dream'
'TRCK' (Track number/Position in set)               '3'
'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'                                   ['psy',
 'progressive psytrance',
 'electronic',
 'progressive trance',
 'psytrance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.55 dB'
'TXXX:replaygain_track_peak'                        '0.469466'

========================== row from database ==========================
                                              'id'  1406398
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Erotic Dream - Progressive Senatsions/03 My Strange Extremities.mp3
                                         'working'  None
                                         'bitrate'  170
                                    'duration_sec'  407
                                           'genre'  electronic-th-trance
                                        'filesize'  8667368
                                           'mtime'  1621627117
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Senatsions 03 electronic th trance
                                      'tag_artist'  Erotic Dream
                                     'tag_release'  Progressive Sensations
                                       'tag_title'  My Strange Extremities
                                             'bpm'  132.012
                                    'search_title'  'extremities':3 'my':1 'strange':2
                                   'search_artist'  'dream':2 'erotic':1
                                  'search_release'  'progressive':1 'sensations':2
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':6 'generic':2 'senatsions':5 'th':7 'trance':8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':8 'dance':10 'dream':5B 'electronic':13 'erotic':4B 'extremities':3A 'generic':9 'my':1A 'progressive':6C 'senatsions':12 'sensations':7C 'strange':2A 'th':14 'trance':15 'trapbeat':11
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psy', 'progressive psytrance', 'electronic', 'progressive trance', 'psytrance']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621627116.5954168  (2021-05-21 21:58:36)
                             'size'  8667368