======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '213'
                                          'artist'  'Trilogy'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Lady Shaw Kitty'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-2', 'q-other-1', 'q-piano-1', "
 "'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  ("['progressive rock', 'heavy metal', 'italo disco', 'power metal', "
 "'progresive metal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '108.297'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '108.297'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TIT2' (Title/songname/content description)         'Lady Shaw Kitty'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Trilogy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '120,188'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Sortunder'                                    't'
'TXXX:lastfmtags'                                   ['progressive rock',
 'heavy metal',
 'italo disco',
 'power metal',
 'progresive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.25 dB'
'TXXX:replaygain_track_peak'                        '0.932594'

========================== row from database ==========================
                                              'id'  896522
                                            'path'  /data/Music/Bulk/sns/Trilogy_LadyShaw_Kitty_0002.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  213
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  3418392
                                           'mtime'  1621044100
                                   'redo_metaread'  0
                                        'rest_str'   sns Trilogy_LadyShaw_Kitty_0002 set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Trilogy
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Lady Shaw Kitty
                                             'bpm'  108.297
                                    'search_title'  'kitty':3 'lady':1 'shaw':2
                                   'search_artist'  'trilogy':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '0002':5,17 'kitty':4,16 'lady':14 'ladyshaw':3 'mor':12 'pl':7 'set':6,9,11 'shaw':15 'shirleyspinoza':8,10 'sns':1 'trilogy':2,13
                                    'search_combo'  '0002':11,23 'kitty':3A,10,22 'lady':1A,20 'ladyshaw':9 'mor':18 'pl':13 'set':12,15,17 'shaw':2A,21 'shirley':5C 'shirleyspinoza':14,16 'sns':7 'spinoza':6C 'trilogy':4B,8,19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'heavy metal', 'italo disco', 'power metal', 'progresive metal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621044099.7913084  (2021-05-15 04:01:39)
                             'size'  3418392