======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '122'
                                          'artist'  'Shonen Knife'
                                     'text_people'  ''
                                         'release'  'Pretty Little Baka Guy + Live In Japan'
                                           'title'  'Riding on the Rocket'
                                           'quals'  ("['Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop'
                                             'bpm'  '113.517'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pretty Little Baka Guy + Live In Japan'
'TBPM' (BPM (beats per minute))                     '113.517'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock', 'rock-gr-punk-pop']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Riding on the Rocket'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Shonen Knife'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']
'TXXX:q-bass'                                       '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.491011'

========================== row from database ==========================
                                              'id'  927062
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Shonen Knife/1986 - Pretty Little Baka Guy + Live In Japan__cifs665b.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  122
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop
                                        'filesize'  2450177
                                           'mtime'  1620385758
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 1986 Japan__cifs665b loc asia japan;loc asia japan jrock;rock gr punk pop
                                      'tag_artist'  Shonen Knife
                                     'tag_release'  Pretty Little Baka Guy + Live In Japan
                                       'tag_title'  Riding on the Rocket
                                             'bpm'  113.517
                                    'search_title'  'on':2 'riding':1 'rocket':4 'the':3
                                   'search_artist'  'knife':2 'shonen':1
                                  'search_release'  'baka':3 'guy':4 'in':6 'japan':7 'little':2 'live':5 'pretty':1
                                     'search_rest'  '00asia':1 '1986':2 'asia':6 'cifs665b':4 'gr':16 'japan':3,7,9,11 'jrock':12,14 'loc':5,8,10 'pop':18 'punk':17 'rock':13,15
                                    'search_combo'  '00asia':14 '1986':15 'asia':19 'baka':9C 'cifs665b':17 'gr':29 'guy':10C 'in':12C 'japan':13C,16,20,22,24 'jrock':25,27 'knife':6B 'little':8C 'live':11C 'loc':18,21,23 'on':2A 'pop':31 'pretty':7C 'punk':30 'riding':1A 'rock':26,28 'rocket':4A 'shonen':5B 'the':3A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385758.24515  (2021-05-07 13:09:18)
                             'size'  2450177