======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '207'
                                          'artist'  'Linda Ronstadt'
                                     'text_people'  ''
                                         'release'  'Mariachi: The Sound Of Hysteria & Heartache [Trikont US-0365]'
                                           'title'  'Corrido De Cananea'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'female vocalists', '70s', 'rock', 'folk', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '18'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-samerica-mexico'
                                             'bpm'  '122.2'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00001005 00000FCC 00006BAF 0000627F 00011CFD 00021D50 00008000 00008000 '
 '000088B0 000051FE')
'TALB' (Album/Movie/Show title)                     'Mariachi: The Sound Of Hysteria & Heartache [Trikont US-0365]'
'TBPM' (BPM (beats per minute))                     '122.2'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-samerica-mexico'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Corrido De Cananea'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '207840'
'TPE1' (Lead performer(s)/Soloist(s))               'Linda Ronstadt'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13/18'
'TSOA' (Album sort order)                           'Mariachi: The Sound Of Hysteria & Heartache (trikont)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['country', 'female vocalists', '70s', 'rock', 'folk', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.358955'

========================== row from database ==========================
                                              'id'  959665
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/VA - Mariachi, the Sound of Hysteria & Heartache/13 - linda ronstadt - corrido de cananea - the sound of hysteria & heartache.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  207
                                           'genre'  loc-samerica-mexico
                                        'filesize'  6748771
                                           'mtime'  1621626208
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm VA Mariachi, the of 13 linda ronstadt corrido de cananea the sound of hysteria heartache loc samerica mexico
                                      'tag_artist'  Linda Ronstadt
                                     'tag_release'  Mariachi: The Sound Of Hysteria & Heartache [Trikont US-0365]
                                       'tag_title'  Corrido De Cananea
                                             'bpm'  122.2
                                    'search_title'  'cananea':3 'corrido':1 'de':2
                                   'search_artist'  'linda':1 'ronstadt':2
                                  'search_release'  '0365':11 'heartache':7 'hysteria':6 'mariachi':1,2 'of':5 'sound':4 'the':3 'trikont':8,9 'us':10 'us0365':12
                                     'search_rest'  'cananea':10 'corrido':8 'de':9 'heartache':13 'hysteria':12 'linda':6 'loc':14 'mariachi':2,3 'mexico':16 'of':5 'ronstadt':7 'samerica':15 'sound':11 'the':4 'va':1
                                    'search_combo'  '0365':16C 'cananea':3A,27 'corrido':1A,25 'de':2A,26 'heartache':12C,30 'hysteria':11C,29 'linda':4B,23 'loc':31 'mariachi':6C,7C,19,20 'mexico':33 'of':10C,22 'ronstadt':5B,24 'samerica':32 'sound':9C,28 'the':8C,21 'trikont':13C,14C 'us':15C 'us0365':17C 'va':18
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'female vocalists', '70s', 'rock', 'folk', 'classic rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626207.9264252  (2021-05-21 21:43:27)
                             'size'  6748771