======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '175'
                                          'artist'  'Renaldo and The Loaf'
                                     'text_people'  ''
                                         'release'  'Arabic Yodelling'
                                           'title'  'Lonely Rosa'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['avant-garde', 'experimental', 'electronic', 'stiff twist']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'loc-m;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '92.013'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Arabic Yodelling'
'TBPM' (BPM (beats per minute))                     '92.013'
'TCON' (Content type, a.k.a. Genre)                 ['loc-m', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         'Lonely Rosa'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Renaldo and The Loaf'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['avant-garde', 'experimental', 'electronic', 'stiff twist']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.665669'

========================== row from database ==========================
                                              'id'  923993
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Arabic Yodelling/12 - Lonely Rosa.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  175
                                           'genre'  loc-m;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  7221348
                                           'mtime'  1620526486
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east 12 loc m;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Renaldo and The Loaf
                                     'tag_release'  Arabic Yodelling
                                       'tag_title'  Lonely Rosa
                                             'bpm'  92.013
                                    'search_title'  'lonely':1 'rosa':2
                                   'search_artist'  'and':2 'loaf':4 'renaldo':1 'the':3
                                  'search_release'  'arabic':1 'yodelling':2
                                     'search_rest'  '00south':1 'east':4 'europe':2 'loc':5 'm':6,8 'middle':3 'mor':15 'pl':10 'set':7,9,12,14 'shirleyspinoza':11,13
                                    'search_combo'  '00south':9 'and':4B 'arabic':7C 'east':12 'europe':10 'loaf':6B 'loc':13 'lonely':1A 'm':14,16 'middle':11 'mor':23 'pl':18 'renaldo':3B 'rosa':2A 'set':15,17,20,22 'shirleyspinoza':19,21 'the':5B 'yodelling':8C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['avant-garde', 'experimental', 'electronic', 'stiff twist']
                                        'tag_date'  1983
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526485.512508  (2021-05-09 04:14:45)
                             'size'  7221348