======================== unified (from filesystem) ========================
                                         'bitrate'  '168.749'
                                        'duration'  '236'
                                          'artist'  'COLTEMONIKHA'
                                     'text_people'  '中田ヤスタカ'
                                         'release'  'COLTEMONIKHA'
                                           'title'  'Communication'
                                           'quals'  ("['Q-HAP-3', '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-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'pico pico', 'electronic', 'japanese', 'j pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '7'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '123.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'COLTEMONIKHA'
'TBPM' (BPM (beats per minute))                     '123.4'
'TCOM' (Composer)                                   '中田ヤスタカ'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Communication'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'COLTEMONIKHA'
'TPE2' (Band/orchestra/accompaniment)               'COLTEMONIKHA'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/7'
'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:iTunes_CDDB_IDs'                              '7+C8DF5269674A5DD2618254F9174720C7+7363213'
'TXXX:lastfmtags'                                   ['electronica', 'pico pico', 'electronic', 'japanese', 'j pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.33 dB'
'TXXX:replaygain_track_peak'                        '0.306933'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1363922
                                            'path'  /data/Music/Bulk/00poprockelectronic/00beepy/COLTEMONIKHA/[2006] COLTEMONIKHA/03 Communication.mp3
                                         'working'  None
                                         'bitrate'  168
                                    'duration_sec'  236
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  5082465
                                           'mtime'  1621705479
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00beepy [2006] 03 electronic we beeps or chip or pico
                                      'tag_artist'  COLTEMONIKHA
                                     'tag_release'  COLTEMONIKHA
                                       'tag_title'  Communication
                                             'bpm'  123.4
                                    'search_title'  'communication':1
                                   'search_artist'  'coltemonikha':1
                                  'search_release'  'coltemonikha':1
                                     'search_rest'  '00beepy':2 '00poprockelectronic':1 '2006':3,4 'beeps':7 'chip':9 'electronic':5 'or':8 'pico':10 'we':6
                                    'search_combo'  '00beepy':5 '00poprockelectronic':4 '2006':6,7 'beeps':10 'chip':12 'coltemonikha':2B,3C 'communication':1A 'electronic':8 'or':11 'pico':13 'we':9
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['electronica', 'pico pico', 'electronic', 'japanese', 'j pop']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705479.1351087  (2021-05-22 19:44:39)
                             'size'  5082465