======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '557'
                                          'artist'  'u.n.'
                                     'text_people'  ' '
                                         'release'  'Space Disco - The Top 50'
                                           'title'  'disco power'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['disco', 'male vocalists', 'drjazzmrfunkmusic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36a'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '126.8'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000075F 00000570 00003CCC 00002E67 0002E675 00030D6E 00007BDB 00007AC1 '
 '0001FBE7 0001FBE7')
'TALB' (Album/Movie/Show title)                     'Space Disco - The Top 50'
'TBPM' (BPM (beats per minute))                     '126.8'
'TCOM' (Composer)                                   ' '
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TIT1' (Content group description)                  ' '
'TIT2' (Title/songname/content description)         'disco power'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'u.n.'
'TRCK' (Track number/Position in set)               '36a'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['disco', 'male vocalists', 'drjazzmrfunkmusic']
'TXXX:q-bass'                                       '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.531185'

========================== row from database ==========================
                                              'id'  1354433
                                            'path'  /data/Music/Bulk/00poprockelectronic/v.a. - space disco_the top 50/36a u.n. - disco power.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  557
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  13538892
                                           'mtime'  1620573973
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic v.a. space disco_the top 36a electronic or italo
                                      'tag_artist'  u.n.
                                     'tag_release'  Space Disco - The Top 50
                                       'tag_title'  disco power
                                             'bpm'  126.8
                                    'search_title'  'disco':1 'power':2
                                   'search_artist'  'n':2 'u':1 'un':3
                                  'search_release'  '50':5 'disco':2 'space':1 'the':3 'top':4
                                     'search_rest'  '00poprockelectronic':1 '36a':9 'a':3 'disco':6 'electronic':10 'italo':12 'or':11 'space':5 'the':7 'top':8 'v':2 'va':4
                                    'search_combo'  '00poprockelectronic':11 '36a':19 '50':10C 'a':13 'disco':1A,7C,16 'electronic':20 'italo':22 'n':4B 'or':21 'power':2A 'space':6C,15 'the':8C,17 'top':9C,18 'u':3B 'un':5B 'v':12 'va':14
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', '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-2', 'q-grit-1']
                                      'lastfmtags'  ['disco', 'male vocalists', 'drjazzmrfunkmusic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573973.008203  (2021-05-09 17:26:13)
                             'size'  13538892