======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '360'
                                          'artist'  'sheila & b. devotion'
                                     'text_people'  ' '
                                         'release'  'Space Disco - The Top 50'
                                           'title'  'spacer'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['french', '70s', 'pop', '80s', 'disco', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '46'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '133.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000223 00000236 00000C52 00000CA9 00015FA7 00033467 00005574 00004F92 '
 '00024A1E 00024A1E')
'TALB' (Album/Movie/Show title)                     'Space Disco - The Top 50'
'TBPM' (BPM (beats per minute))                     '133.9'
'TCOM' (Composer)                                   ' '
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1985'
'TIT1' (Content group description)                  ' '
'TIT2' (Title/songname/content description)         'spacer'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'sheila & b. devotion'
'TRCK' (Track number/Position in set)               '46'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['french', '70s', 'pop', '80s', 'disco', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.04 dB'
'TXXX:replaygain_track_peak'                        '0.811047'

========================== row from database ==========================
                                              'id'  1321845
                                            'path'  /data/Music/Bulk/00poprockelectronic/v.a. - space disco_the top 50/46 sheila & b. devotion - spacer.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  360
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  8819413
                                           'mtime'  1620573978
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic v.a. disco_the top 46 electronic we disco or italo
                                      'tag_artist'  sheila & b. devotion
                                     'tag_release'  Space Disco - The Top 50
                                       'tag_title'  spacer
                                             'bpm'  133.9
                                    'search_title'  'spacer':1
                                   'search_artist'  'b':2,3 'devotion':4 'sheila':1
                                  'search_release'  '50':5 'disco':2 'space':1 'the':3 'top':4
                                     'search_rest'  '00poprockelectronic':1 '46':8 'a':3 'disco':5,11 'electronic':9 'italo':13 'or':12 'the':6 'top':7 'v':2 'va':4 'we':10
                                    'search_combo'  '00poprockelectronic':11 '46':18 '50':10C 'a':13 'b':3B,4B 'devotion':5B 'disco':7C,15,21 'electronic':19 'italo':23 'or':22 'sheila':2B 'space':6C 'spacer':1A 'the':8C,16 'top':9C,17 'v':12 'va':14 'we':20
                                    'tag_tracknum'  46
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['french', '70s', 'pop', '80s', 'disco', 'funk']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573977.989782  (2021-05-09 17:26:17)
                             'size'  8819413