======================== unified (from filesystem) ========================
                                         'bitrate'  '209.664'
                                        'duration'  '801'
                                          'artist'  'eX-Girl'
                                     'text_people'  ''
                                         'release'  'Kero! Kero! Kero!'
                                           'title'  'Space Mushroom'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', '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-1']")
                                      'lastfmtags'  "['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']"
                                     'discogstags'  "['electronic', 'rock', 'punk', 'synth-pop', 'avantgarde']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '137.852'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Kero! Kero! Kero!'
'TBPM' (BPM (beats per minute))                     '137.852'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Space Mushroom'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'eX-Girl'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'punk', 'synth-pop', 'avantgarde']
'TXXX:lastfmtags'                                   ['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.75 dB'
'TXXX:replaygain_track_peak'                        '0.517069'

========================== row from database ==========================
                                              'id'  926146
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/eX-Girl/[1999] Kero! Kero! Kero!/eX-Girl - Kero! Kero! Kero! - 09 - Space Mushroom.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  801
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  21017329
                                           'mtime'  1622757808
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia [1999] 09 loc asia japan;loc asia japan jrock
                                      'tag_artist'  eX-Girl
                                     'tag_release'  Kero! Kero! Kero!
                                       'tag_title'  Space Mushroom
                                             'bpm'  137.852
                                    'search_title'  'mushroom':2 'space':1
                                   'search_artist'  'e':4 'ex':1 'exgirl':3 'girl':2,6 'x':5 'xgirl':7
                                  'search_release'  'kero':1
                                     'search_rest'  '00asia':1 '1999':2,3 'asia':5 'japan':6,8,10 'jrock':11 'loc':4,7,9
                                    'search_combo'  '00asia':11 '1999':12,13 'asia':15 'e':6B 'ex':3B 'exgirl':5B 'girl':4B,8B 'japan':16,18,20 'jrock':21 'kero':10C 'loc':14,17,19 'mushroom':2A 'space':1A 'x':7B 'xgirl':9B
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', '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-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'female vocalists', 'japanese', 'experimental', 'j rock']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'rock', 'punk', 'synth-pop', 'avantgarde']

============================== file details ==============================
                                           'mtime'  1622757807.6389098  (2021-06-04 00:03:27)
                             'size'  21017329