======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '94'
                                          'artist'  'La Joven Guardia'
                                     'text_people'  ''
                                         'release'  'Psychodelicias Vol.  1'
                                           'title'  'En el Pueblo de San Esteban'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['beat', 'argentina', 'latin', 'all', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '95.214'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychodelicias Vol.  1'
'TBPM' (BPM (beats per minute))                     '95.214'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'En el Pueblo de San Esteban'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'La Joven Guardia'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['beat', 'argentina', 'latin', 'all', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.41 dB'
'TXXX:replaygain_track_peak'                        '0.637278'

========================== row from database ==========================
                                              'id'  1413577
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Psychodelicias vol.01 (spanish 60s)/12.  La Joven Guardia - En el Pueblo de San Esteban.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  94
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  3033175
                                           'mtime'  1620736791
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vol.01 (spanish 60s) 12. rock cppex psychedelic
                                      'tag_artist'  La Joven Guardia
                                     'tag_release'  Psychodelicias Vol.  1
                                       'tag_title'  En el Pueblo de San Esteban
                                             'bpm'  95.214
                                    'search_title'  'de':4 'el':2 'en':1 'esteban':6 'pueblo':3 'san':5
                                   'search_artist'  'guardia':3 'joven':2 'la':1
                                  'search_release'  '1':4 'psychodelicias':1 'vol':2,3
                                     'search_rest'  '01':3 '12':9,10 '60s':7,8 'classicprogpsy':1 'cppex':12 'psychedelic':13 'rock':11 'spanish':5,6 'vol':2 'vol01':4
                                    'search_combo'  '01':16 '1':13C '12':22,23 '60s':20,21 'classicprogpsy':14 'cppex':25 'de':4A 'el':2A 'en':1A 'esteban':6A 'guardia':9B 'joven':8B 'la':7B 'psychedelic':26 'psychodelicias':10C 'pueblo':3A 'rock':24 'san':5A 'spanish':18,19 'vol':11C,12C,15 'vol01':17
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['beat', 'argentina', 'latin', 'all', 'rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736790.8104198  (2021-05-11 14:39:50)
                             'size'  3033175