======================== unified (from filesystem) ========================
                                         'bitrate'  '194.266'
                                        'duration'  '218'
                                          'artist'  'Red Hot Chili Peppers'
                                     'text_people'  'A.Kiedis/C.Martinez/J.Sherman/M.Balzary'
                                         'release'  'The Abbey Road E.P.'
                                           'title'  "True Men Don't Kill Coyotes"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'funk rock', 'alternative', 'funk', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'funk metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '5'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'rock-funk'
                                             'bpm'  '111.824'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Abbey Road E.P.'
'TBPM' (BPM (beats per minute))                     '111.824'
'TCOM' (Composer)                                   'A.Kiedis/C.Martinez/J.Sherman/M.Balzary'
'TCON' (Content type, a.k.a. Genre)                 'rock-funk'
'TDRC' (Recording time)                             '1988'
'TIT2' (Title/songname/content description)         "True Men Don't Kill Coyotes"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Hot Chili Peppers'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'funk metal']
'TXXX:iTunes_CDDB_IDs'                              '5+BE7BF6305B401B9F09AA3C28BC45ACA4+444123'
'TXXX:lastfmtags'                                   ['alternative rock', 'funk rock', 'alternative', 'funk', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.603460'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1517461
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Red Hot Chili Peppers/The Abbey Road E.P_/05 True Men Don_t Kill Coyotes.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  218
                                           'genre'  rock-funk
                                        'filesize'  5362526
                                           'mtime'  1630253025
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul E.P_ 05 Don_t rock funk
                                      'tag_artist'  Red Hot Chili Peppers
                                     'tag_release'  The Abbey Road E.P.
                                       'tag_title'  True Men Don't Kill Coyotes
                                             'bpm'  111.824
                                    'search_title'  'coyotes':7 'don':3 'dont':5 'kill':6 'men':2 't':4 'true':1
                                   'search_artist'  'chili':3 'hot':2 'peppers':4 'red':1
                                  'search_release'  'abbey':2 'e':4 'ep':6 'p':5 'road':3 'the':1
                                     'search_rest'  'don':7 'e':4 'ep':6 'funk':2 'p':5 'rock':9 'soul':3 'swing':1 't':8
                                    'search_combo'  'abbey':13C 'chili':10B 'coyotes':7A 'don':3A,24 'dont':5A 'e':15C,21 'ep':17C,23 'funk':19 'hot':9B 'kill':6A 'men':2A 'p':16C,22 'peppers':11B 'red':8B 'road':14C 'rock':26 'soul':20 'swing':18 't':4A,25 'the':12C 'true':1A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'funk rock', 'alternative', 'funk', 'rock']
                                        'tag_date'  1988
                                     'discogstags'  ['rock', 'alternative rock', 'funk metal']

============================== file details ==============================
                                           'mtime'  1630253025.0851436  (2021-08-29 18:03:45)
                             'size'  5362526