======================== unified (from filesystem) ========================
                                         'bitrate'  '272.405'
                                        'duration'  '172'
                                          'artist'  'sohail rana'
                                     'text_people'  ''
                                         'release'  'Khyber Mail (Pakistan 1970)'
                                           'title'  'Saat Maatray'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'pakistan', 'psych', 'funk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf;loc-asia-pakistan'
                                             'bpm'  '119.405'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Khyber Mail (Pakistan 1970)'
'TBPM' (BPM (beats per minute))                     '119.405'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-surf', 'loc-asia-pakistan']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Saat Maatray'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'sohail rana'
'TPE2' (Band/orchestra/accompaniment)               'sohail rana'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['surf', 'pakistan', 'psych', 'funk', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.576291'

========================== row from database ==========================
                                              'id'  1419117
                                            'path'  /data/Music/Bulk/00localcharacter/sohail rana - khyber mail (pakistani surf funk 1970)/saat maatray.mp3
                                         'working'  None
                                         'bitrate'  272
                                    'duration_sec'  172
                                           'genre'  rock-pop-surf;loc-asia-pakistan
                                        'filesize'  5887663
                                           'mtime'  1620736863
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter khyber mail (pakistani surf funk saat maatray rock pop surf;loc asia pakistan
                                      'tag_artist'  sohail rana
                                     'tag_release'  Khyber Mail (Pakistan 1970)
                                       'tag_title'  Saat Maatray
                                             'bpm'  119.405
                                    'search_title'  'maatray':2 'saat':1
                                   'search_artist'  'rana':2 'sohail':1
                                  'search_release'  '1970':5,6 'khyber':1 'mail':2 'pakistan':3,4
                                     'search_rest'  'asia':15 'funk':6 'khyber':1 'loc':12,14 'maatray':8 'mail':2 'pakistan':16 'pakistani':3,4 'pop':10 'rock':9 'saat':7 'surf':5,11,13
                                    'search_combo'  '1970':9C,10C 'asia':25 'funk':16 'khyber':5C,11 'loc':22,24 'maatray':2A,18 'mail':6C,12 'pakistan':7C,8C,26 'pakistani':13,14 'pop':20 'rana':4B 'rock':19 'saat':1A,17 'sohail':3B 'surf':15,21,23
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'pakistan', 'psych', 'funk', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736862.5160415  (2021-05-11 14:41:02)
                             'size'  5887663