======================== unified (from filesystem) ========================
                                         'bitrate'  '210.67'
                                        'duration'  '157'
                                          'artist'  'Plus-Tech Squeeze Box'
                                     'text_people'  ''
                                         'release'  'Cartoom!'
                                           'title'  'Rival'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']"
                                     'discogstags'  "['electronic', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '13'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '135.004'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000219B 000022DB 00010FF2 0000C585 0001AD73 0001AD73 00008000 00008000 '
 '00021D41 00006FFB')
'TALB' (Album/Movie/Show title)                     'Cartoom!'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Rival'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Plus-Tech Squeeze Box'
'TPE2' (Band/orchestra/accompaniment)               'Plus-Tech Squeeze Box'
'TRCK' (Track number/Position in set)               '11/13'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'pop']
'TXXX:lastfmtags'                                   ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.276717'

========================== row from database ==========================
                                              'id'  380304
                                            'path'  /data/Music/Bulk/00localcharacter/Plus-Tech Squeeze Box/[2004] Cartoom!/11 Rival.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  157
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  4247867
                                           'mtime'  1621632222
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2004] 11 electronic we beeps or chip or pico
                                      'tag_artist'  Plus-Tech Squeeze Box
                                     'tag_release'  Cartoom!
                                       'tag_title'  Rival
                                             'bpm'  135.004
                                    'search_title'  'rival':1
                                   'search_artist'  'box':5 'plus':1 'plustech':3 'squeeze':4 'tech':2
                                  'search_release'  'cartoom':1
                                     'search_rest'  '2004':1,2 'beeps':5 'chip':7 'electronic':3 'or':6 'pico':8 'we':4
                                    'search_combo'  '2004':8,9 'beeps':12 'box':6B 'cartoom':7C 'chip':14 'electronic':10 'or':13 'pico':15 'plus':2B 'plustech':4B 'rival':1A 'squeeze':5B 'tech':3B 'we':11
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', '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-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'pop']

============================== file details ==============================
                                           'mtime'  1621632222.2362173  (2021-05-21 23:23:42)
                             'size'  4247867