======================== unified (from filesystem) ========================
                                         'bitrate'  '236.899'
                                        'duration'  '170'
                                          'artist'  'Blood Stain Child'
                                     'text_people'  ''
                                         'release'  'Mystic Your Heart'
                                           'title'  '\x1eSystem'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['death metal', 'trance metal', 'metal', 'japanese', 'melodic death metal', "
 "'j metal']")
                                     'discogstags'  "['electronic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-metal-death-melodic;loc-asia-japan'
                                             'bpm'  '130.230'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mystic Your Heart'
'TBPM' (BPM (beats per minute))                     '130.230'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death-melodic', 'loc-asia-japan']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         '\x1eSystem'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '170000'
'TPE1' (Lead performer(s)/Soloist(s))               'Blood Stain Child'
'TPE2' (Band/orchestra/accompaniment)               'Blood Stain Child'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock']
'TXXX:lastfmtags'                                   ['death metal',
 'trance metal',
 'metal',
 'japanese',
 'melodic death metal',
 'j metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.53 dB'
'TXXX:replaygain_track_peak'                        '0.389404'

========================== row from database ==========================
                                              'id'  1394325
                                            'path'  /data/Music/Bulk/00dwimp/00metal/00death/Blood Stain Child/Mystic Your Heart/02 - ∞System.mp3
                                         'working'  None
                                         'bitrate'  236
                                    'duration_sec'  170
                                           'genre'  eid-metal-death-melodic;loc-asia-japan
                                        'filesize'  5037742
                                           'mtime'  1620301227
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 00death 02 ∞System eid metal death melodic;loc asia japan
                                      'tag_artist'  Blood Stain Child
                                     'tag_release'  Mystic Your Heart
                                       'tag_title'  System
                                             'bpm'  130.23
                                    'search_title'  'system':1
                                   'search_artist'  'blood':1 'child':3 'stain':2
                                  'search_release'  'heart':3 'mystic':1 'your':2
                                     'search_rest'  '00death':3 '00dwimp':1 '00metal':2 'asia':12 'death':7 'eid':5 'japan':13 'loc':9,11 'melodic':8,10 'metal':6 'system':4
                                    'search_combo'  '00death':10 '00dwimp':8 '00metal':9 'asia':19 'blood':2B 'child':4B 'death':14 'eid':12 'heart':7C 'japan':20 'loc':16,18 'melodic':15,17 'metal':13 'mystic':5C 'stain':3B 'system':1A,11 'your':6C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['death metal', 'trance metal', 'metal', 'japanese', 'melodic death metal', 'j metal']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1620301226.6779883  (2021-05-06 13:40:26)
                             'size'  5037742