======================== unified (from filesystem) ========================
                                         'bitrate'  '220.628'
                                        'duration'  '201'
                                          'artist'  'Basshunter'
                                     'text_people'  ''
                                         'release'  'LOL (International Edition)'
                                           'title'  'Dota (Radio Edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-1', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dance', 'trance', 'swedish', 'techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle;set-pl-zomg80s'
                                             'bpm'  '140.141'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'LOL (International Edition)'
'TBPM' (BPM (beats per minute))                     '140.141'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-breakbeat or dnb or jungle', 'set-pl-zomg80s']
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'LAME APS'
'TIT2' (Title/songname/content description)         'Dota (Radio Edit)'
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'Swedish'
'TPE1' (Lead performer(s)/Soloist(s))               'Basshunter'
'TRCK' (Track number/Position in set)               '1'
'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:lastfmtags'                                   ['dance', 'trance', 'swedish', 'techno', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.423538'

========================== row from database ==========================
                                              'id'  1325638
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Basshunter/LOL/01-basshunter-dota_(radio_edit).mp3
                                         'working'  None
                                         'bitrate'  220
                                    'duration_sec'  201
                                           'genre'  electronic-th-breakbeat or dnb or jungle;set-pl-zomg80s
                                        'filesize'  5556057
                                           'mtime'  1621695928
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 01 basshunter dota_(radio_edit) electronic th breakbeat or dnb or jungle;set pl zomg80s
                                      'tag_artist'  Basshunter
                                     'tag_release'  LOL (International Edition)
                                       'tag_title'  Dota (Radio Edit)
                                             'bpm'  140.141
                                    'search_title'  'dota':1 'edit':4,5 'radio':2,3
                                   'search_artist'  'basshunter':1
                                  'search_release'  'edition':4,5 'international':2,3 'lol':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'basshunter':3 'breakbeat':12 'dnb':14 'dota':4,7 'edit':6,9 'electronic':10 'jungle':15,17 'or':13 'pl':19 'radio':5,8 'set':16,18 'th':11 'zomg80s':20
                                    'search_combo'  '00dnb':13 '00poprockelectronic':12 'basshunter':6B,14 'breakbeat':23 'dnb':25 'dota':1A,15,18 'edit':4A,5A,17,20 'edition':10C,11C 'electronic':21 'international':8C,9C 'jungle':26,28 'lol':7C 'or':24 'pl':30 'radio':2A,3A,16,19 'set':27,29 'th':22 'zomg80s':31
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['dance', 'trance', 'swedish', 'techno', 'electronic']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695927.8814986  (2021-05-22 17:05:27)
                             'size'  5556057