======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '265'
                                          'artist'  'Agata'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Tens Que Decidir-te'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['11', 'noise', 'experimental', 'japanese', 'avant-garde']"
                                     'discogstags'  "['pop rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '120.256'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.256'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Tens Que Decidir-te'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Agata'
'TPE2' (Band/orchestra/accompaniment)               'Agata'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['pop rock', 'rock']
'TXXX:lastfmtags'                                   ['11', 'noise', 'experimental', 'japanese', 'avant-garde']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+9.06 dB'
'TXXX:replaygain_track_peak'                        '0.138088'

========================== row from database ==========================
                                              'id'  1330036
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Agata - Tens Que Decidir-Te [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  265
                                           'genre'  
                                        'filesize'  6366233
                                           'mtime'  1652397937
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] []
                                      'tag_artist'  Agata
                                     'tag_release'  None
                                       'tag_title'  Tens Que Decidir-te
                                             'bpm'  120.256
                                    'search_title'  'decidir':3 'decidirte':5 'que':2 'te':4 'tens':1
                                   'search_artist'  'agata':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'agata':6B 'decidir':3A 'decidirte':5A 'files':11,12 'loose':9,10 'que':2A 'te':4A 'tens':1A 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']
                                      'lastfmtags'  ['11', 'noise', 'experimental', 'japanese', 'avant-garde']
                                        'tag_date'  2008
                                     'discogstags'  ['pop rock', 'rock']

============================== file details ==============================
                                           'mtime'  1652397937.1487947  (2022-05-13 01:25:37)
                             'size'  6366233