======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '182'
                                          'artist'  'Two Inch Punch'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Luv Luv'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', "
 "'q-other-2', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'future garage', 'slowstep', 'drum and bass', 'chillstep']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '141.314'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000006DA 000006BF 000068CA 00'
'COMM:iTunNORM:eng'                                 (' 000006DA 000006BF 000068CA 00006962 0001B2B1 00019272 000095CB 00009649 '
 '00018872 00018872')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B3D 00000000007AF5B3 00000000 006F729D 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TBPM' (BPM (beats per minute))                     '141.314'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         'Luv Luv'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Two Inch Punch'
'TSSE' (Software/Hardware and settings used for encoding)  'Logic Pro 9.0.0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'future garage', 'slowstep', 'drum and bass', 'chillstep']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+11.37 dB'
'TXXX:replaygain_track_peak'                        '0.146433'

========================== row from database ==========================
                                              'id'  1330666
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Luv-Luv.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  182
                                           'genre'  electronic-unsorted
                                        'filesize'  9032971
                                           'mtime'  1621697732
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic unsorted
                                      'tag_artist'  Two Inch Punch
                                     'tag_release'  None
                                       'tag_title'  Luv Luv
                                             'bpm'  141.314
                                    'search_title'  'luv':1
                                   'search_artist'  'inch':2 'punch':3 'two':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':5 'electronic':11 'files':9,10 'inch':3B 'loose':7,8 'luv':1A 'punch':4B 'two':2B 'unsorted':6
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'future garage', 'slowstep', 'drum and bass', 'chillstep']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621697731.864574  (2021-05-22 17:35:31)
                             'size'  9032971