======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '324'
                                          'artist'  'Takako Minekawa & Dymaxion'
                                     'text_people'  ''
                                         'release'  'Maxi On'
                                           'title'  'Sleeping Bag (bonus)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'electronic', 'shibuya-kei', 'j-pop', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '119.900'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Maxi On'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'Sleeping Bag (bonus)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Takako Minekawa & Dymaxion'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['japanese', 'electronic', 'shibuya-kei', 'j-pop', 'female vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.439660'

========================== row from database ==========================
                                              'id'  728903
                                            'path'  /data/Music/Bulk/00localcharacter/takako minekawa & dymaxion - maxi-on!/07 Sleeping Bag (bonus).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  324
                                           'genre'  loc-unsorted
                                        'filesize'  7789608
                                           'mtime'  1620401723
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter takako minekawa dymaxion on! 07 loc unsorted
                                      'tag_artist'  Takako Minekawa & Dymaxion
                                     'tag_release'  Maxi On
                                       'tag_title'  Sleeping Bag (bonus)
                                             'bpm'  119.9
                                    'search_title'  'bag':2 'bonus':3,4 'sleeping':1
                                   'search_artist'  'dymaxion':3 'minekawa':2 'takako':1
                                  'search_release'  'maxi':1 'on':2
                                     'search_rest'  'dymaxion':3 'loc':5 'minekawa':2 'on':4 'takako':1 'unsorted':6
                                    'search_combo'  'bag':2A 'bonus':3A,4A 'dymaxion':7B,12 'loc':14 'maxi':8C 'minekawa':6B,11 'on':9C,13 'sleeping':1A 'takako':5B,10 'unsorted':15
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'electronic', 'shibuya-kei', 'j-pop', 'female vocalists']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401723.3805556  (2021-05-07 17:35:23)
                             'size'  7789608