======================== unified (from filesystem) ========================
                                         'bitrate'  '171.903'
                                        'duration'  '303'
                                          'artist'  'Shonen Knife'
                                     'text_people'  ''
                                         'release'  'Brown Mushrooms and Other Delights'
                                           'title'  'Butterfly Boy (F.I. mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop'
                                             'bpm'  '129.068'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Brown Mushrooms and Other Delights'
'TBPM' (BPM (beats per minute))                     '129.068'
'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)         'Butterfly Boy (F.I. mix)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shonen Knife'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.58 dB'
'TXXX:replaygain_track_peak'                        '0.680572'

========================== row from database ==========================
                                              'id'  928942
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Shonen Knife/1993 - Brown Mushrooms And Other Delights (VBR)/02-Butterfly Boy (F.I. Mix).mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  303
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock;rock-gr-punk-pop
                                        'filesize'  6520839
                                           'mtime'  1621489125
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 1993 And (VBR) 02 Mix) loc asia japan;loc asia japan jrock;rock gr punk pop
                                      'tag_artist'  Shonen Knife
                                     'tag_release'  Brown Mushrooms and Other Delights
                                       'tag_title'  Butterfly Boy (F.I. mix)
                                             'bpm'  129.068
                                    'search_title'  'boy':2 'butterfly':1 'f':3 'fi':5 'i':4 'mix':6,7
                                   'search_artist'  'knife':2 'shonen':1
                                  'search_release'  'and':3 'brown':1 'delights':5 'mushrooms':2 'other':4
                                     'search_rest'  '00asia':1 '1993':2 'and':3 'asia':9 'gr':19 'japan':10,12,14 'jrock':15,17 'loc':8,11,13 'mix':6,7 'pop':21 'punk':20 'rock':16,18 'vbr':4,5
                                    'search_combo'  '00asia':15 '1993':16 'and':12C,17 'asia':23 'boy':2A 'brown':10C 'butterfly':1A 'delights':14C 'f':3A 'fi':5A 'gr':33 'i':4A 'japan':24,26,28 'jrock':29,31 'knife':9B 'loc':22,25,27 'mix':6A,7A,20,21 'mushrooms':11C 'other':13C 'pop':35 'punk':34 'rock':30,32 'shonen':8B 'vbr':18,19
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'punk', 'j-rock', 'rock', 'female vocalists']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489125.3081038  (2021-05-20 07:38:45)
                             'size'  6520839