======================== unified (from filesystem) ========================
                                         'bitrate'  '209.825'
                                        'duration'  '231'
                                          'artist'  'COPTER4016882'
                                     'text_people'  ''
                                         'release'  '2D2D'
                                           'title'  'deep deep night'
                                           '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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico;set-pl-sced'
                                             'bpm'  '97.318'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '2D2D'
'TBPM' (BPM (beats per minute))                     '97.318'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-beeps or chip or pico', 'set-pl-sced']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'deep deep night'
'TKEY' (Initial key)                                '7A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'COPTER4016882'
'TPE2' (Band/orchestra/accompaniment)               'COPTER4016882'
'TRCK' (Track number/Position in set)               '12'
'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:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.429823'

========================== row from database ==========================
                                              'id'  1385894
                                            'path'  /data/Music/Bulk/00poprockelectronic/00beepy/COPTER4016882/[2006] 2D2D/12 deep deep night.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  231
                                           'genre'  electronic-we-beeps or chip or pico;set-pl-sced
                                        'filesize'  6098471
                                           'mtime'  1620526595
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00beepy [2006] 12 electronic we beeps or chip or pico;set pl sced
                                      'tag_artist'  COPTER4016882
                                     'tag_release'  2D2D
                                       'tag_title'  deep deep night
                                             'bpm'  97.318
                                    'search_title'  'deep':1 'night':2
                                   'search_artist'  'copter4016882':1
                                  'search_release'  '2d2d':1
                                     'search_rest'  '00beepy':2 '00poprockelectronic':1 '2006':3,4 'beeps':7 'chip':9 'electronic':5 'or':8 'pico':10,12 'pl':14 'sced':15 'set':11,13 'we':6
                                    'search_combo'  '00beepy':6 '00poprockelectronic':5 '2006':7,8 '2d2d':4C 'beeps':11 'chip':13 'copter4016882':3B 'deep':1A 'electronic':9 'night':2A 'or':12 'pico':14,16 'pl':18 'sced':19 'set':15,17 'we':10
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['shibuya kei', 'electronic', 'japanese', 'j pop', 'picopop']
                                        'tag_date'  2006
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620526594.8246763  (2021-05-09 04:16:34)
                             'size'  6098471