======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '205'
                                          'artist'  'Jimmie Rodgers'
                                     'text_people'  ''
                                         'release'  "Dimitri's Yodel Compilation"
                                           'title'  'Blue Yodel No. 1 (T For Texas)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic country', 'americana', 'country', 'bluegrass', 'blues', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '144.0'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000BD5 00000C34 000033BE 000034FF 00009C6E 00009C6E 00005924 00005ADB '
 '00009C6E 00009C6E')
'PRIV:AverageLevel:ý\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xfd\x12\x00\x00')
'PRIV:PeakValue:\ny\x00\x00'                        PRIV(owner='PeakValue', data=b'\ny\x00\x00')
'TALB' (Album/Movie/Show title)                     "Dimitri's Yodel Compilation"
'TBPM' (BPM (beats per minute))                     '144.0'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'Blue Yodel No. 1 (T For Texas)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmie Rodgers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['classic country', 'americana', 'country', 'bluegrass', 'blues', 'folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.23 dB'
'TXXX:replaygain_track_peak'                        '0.397593'

========================== row from database ==========================
                                              'id'  1532845
                                            'path'  /data/Music/Bulk/00spent/Dimitri_s Yodel Compilation/11 - Jimmie Rodgers - Blue Yodel No. 1 (T For Texas).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  205
                                           'genre'  loc-unsorted
                                        'filesize'  6769990
                                           'mtime'  1621630319
                                   'redo_metaread'  0
                                        'rest_str'   00spent Dimitri_s 11 loc unsorted
                                      'tag_artist'  Jimmie Rodgers
                                     'tag_release'  Dimitri's Yodel Compilation
                                       'tag_title'  Blue Yodel No. 1 (T For Texas)
                                             'bpm'  144.0
                                    'search_title'  '1':5 'blue':1 'for':8 'no':3,4 't':6,7 'texas':9,10 'yodel':2
                                   'search_artist'  'jimmie':1 'rodgers':2
                                  'search_release'  'compilation':5 'dimitri':1 'dimitris':3 's':2 'yodel':4
                                     'search_rest'  '00spent':1 'dimitri':2 'loc':4 's':3 'unsorted':5
                                    'search_combo'  '00spent':18 '1':5A 'blue':1A 'compilation':17C 'dimitri':13C,19 'dimitris':15C 'for':8A 'jimmie':11B 'loc':21 'no':3A,4A 'rodgers':12B 's':14C,20 't':6A,7A 'texas':9A,10A 'unsorted':22 'yodel':2A,16C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'americana', 'country', 'bluegrass', 'blues', 'folk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630319.4138765  (2021-05-21 22:51:59)
                             'size'  6769990