======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '179'
                                          'artist'  'Los Walkers'
                                     'text_people'  ''
                                         'release'  'Psychodelicias Vol.  1'
                                           'title'  '19.8'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
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 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['psychedelic', 'all', 'latin', '60s', 'peru']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '116.253'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Psychodelicias Vol.  1'
'TBPM' (BPM (beats per minute))                     '116.253'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         '19.8'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '179000'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Walkers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['psychedelic', 'all', 'latin', '60s', 'peru']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.26 dB'
'TXXX:replaygain_track_peak'                        '0.631589'

========================== row from database ==========================
                                              'id'  1413473
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Psychodelicias vol.01 (spanish 60s)/04. Los Walkers - 19.8.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  179
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  4314760
                                           'mtime'  1620736784
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vol.01 (spanish 60s) 04. rock cppex psychedelic
                                      'tag_artist'  Los Walkers
                                     'tag_release'  Psychodelicias Vol.  1
                                       'tag_title'  19.8
                                             'bpm'  116.253
                                    'search_title'  '19':1 '198':3 '8':2
                                   'search_artist'  'los':1 'walkers':2
                                  'search_release'  '1':4 'psychodelicias':1 'vol':2,3
                                     'search_rest'  '01':3 '04':9,10 '60s':7,8 'classicprogpsy':1 'cppex':12 'psychedelic':13 'rock':11 'spanish':5,6 'vol':2 'vol01':4
                                    'search_combo'  '01':12 '04':18,19 '1':9C '19':1A '198':3A '60s':16,17 '8':2A 'classicprogpsy':10 'cppex':21 'los':4B 'psychedelic':22 'psychodelicias':6C 'rock':20 'spanish':14,15 'vol':7C,8C,11 'vol01':13 'walkers':5B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           '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-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic', 'all', 'latin', '60s', 'peru']
                                        'tag_date'  1965
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736783.9065847  (2021-05-11 14:39:43)
                             'size'  4314760