======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '172'
                                          'artist'  'Los Brincos'
                                     'text_people'  'Fernando Arbex/Maryni Callejo/M. Gonzalez/A. Morales/Pardo  Juan'
                                         'release'  'Psychodelicias Vol. 4'
                                           'title'  'Tu me dijiste adios'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'rock', '60s', 'spain', 'spanish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '117.127'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'Psychodelicias Vol. 4'
'TBPM' (BPM (beats per minute))                     '117.127'
'TCOM' (Composer)                                   'Fernando Arbex/Maryni Callejo/M. Gonzalez/A. Morales/Pardo  Juan'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Tu me dijiste adios'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Brincos'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'T.H. Rodven'
'TRCK' (Track number/Position in set)               '08'
'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'                                   ['all', 'rock', '60s', 'spain', 'spanish']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '-0.65 dB'
'TXXX:replaygain_track_peak'                        '0.477659'

========================== row from database ==========================
                                              'id'  1415394
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Psychodelicias vol.04 (spanish 60s)/08. Los Brincos - Tu me dijiste adios.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  172
                                           'genre'  rock-cppex-progressive
                                        'filesize'  2965384
                                           'mtime'  1620737744
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vol.04 (spanish 60s) 08. rock cppex progressive
                                      'tag_artist'  Los Brincos
                                     'tag_release'  Psychodelicias Vol. 4
                                       'tag_title'  Tu me dijiste adios
                                             'bpm'  117.127
                                    'search_title'  'adios':4 'dijiste':3 'me':2 'tu':1
                                   'search_artist'  'brincos':2 'los':1
                                  'search_release'  '4':4 'psychodelicias':1 'vol':2,3
                                     'search_rest'  '04':3 '08':9,10 '60s':7,8 'classicprogpsy':1 'cppex':12 'progressive':13 'rock':11 'spanish':5,6 'vol':2 'vol04':4
                                    'search_combo'  '04':13 '08':19,20 '4':10C '60s':17,18 'adios':4A 'brincos':6B 'classicprogpsy':11 'cppex':22 'dijiste':3A 'los':5B 'me':2A 'progressive':23 'psychodelicias':7C 'rock':21 'spanish':15,16 'tu':1A 'vol':8C,9C,12 'vol04':14
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  1B
                                           '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-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['all', 'rock', '60s', 'spain', 'spanish']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737743.569801  (2021-05-11 14:55:43)
                             'size'  2965384