======================== unified (from filesystem) ========================
                                         'bitrate'  '205.664'
                                        'duration'  '158'
                                          'artist'  '45 Grave'
                                     'text_people'  ''
                                         'release'  'Darker Skratcher'
                                           'title'  'Riboflavin-flavored, Non-carbonated, Polyunsaturated Blood'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['goth', 'horror punk', 'deathrock', 'punk', 'gothic', 'death rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '126.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:tagscan:eng'                                  'LAFMS #12 (Vinyl Source)'
'TALB' (Album/Movie/Show title)                     'Darker Skratcher'
'TBPM' (BPM (beats per minute))                     '126.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Riboflavin-flavored, Non-carbonated, Polyunsaturated Blood'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               '45 Grave'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['goth', 'horror punk', 'deathrock', 'punk', 'gothic', 'death rock']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.422294'

========================== row from database ==========================
                                              'id'  1362281
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Airway - Darker Scratcher (LAFMS 1980) [224k VBR]/07. 45 Grave - Riboflavin-flavored, Non-carbonated, Polyunsaturated Blood.mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  158
                                           'genre'  electronic-unsorted
                                        'filesize'  4087680
                                           'mtime'  1621695817
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Airway Scratcher (LAFMS 1980) [224k VBR] 07. electronic unsorted
                                      'tag_artist'  45 Grave
                                     'tag_release'  Darker Skratcher
                                       'tag_title'  Riboflavin-flavored, Non-carbonated, Polyunsaturated Blood
                                             'bpm'  126.3
                                    'search_title'  'blood':8 'carbonated':5 'flavored':2 'non':4 'noncarbonated':6 'polyunsaturated':7 'riboflavin':1 'riboflavinflavored':3
                                   'search_artist'  '45':1 'grave':2
                                  'search_release'  'darker':1 'skratcher':2
                                     'search_rest'  '07':11,12 '1980':5,6 '224k':7,8 'airway':1 'electronic':13 'lafms':3,4 'scratcher':2 'unsorted':14 'vbr':9,10
                                    'search_combo'  '07':23,24 '1980':17,18 '224k':19,20 '45':9B 'airway':13 'blood':8A 'carbonated':5A 'darker':11C 'electronic':25 'flavored':2A 'grave':10B 'lafms':15,16 'non':4A 'noncarbonated':6A 'polyunsaturated':7A 'riboflavin':1A 'riboflavinflavored':3A 'scratcher':14 'skratcher':12C 'unsorted':26 'vbr':21,22
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['goth', 'horror punk', 'deathrock', 'punk', 'gothic', 'death rock']
                                        'tag_date'  1980
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621695817.014841  (2021-05-22 17:03:37)
                             'size'  4087680