======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  'Charlo y su Orquesta'
                                     'text_people'  ''
                                         'release'  'Milongas'
                                           'title'  'No hay tierra como la mía'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '97.788'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     'Milongas'
'TBPM' (BPM (beats per minute))                     '97.788'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TIT2' (Title/songname/content description)         'No hay tierra como la mía'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '165485'
'TPE1' (Lead performer(s)/Soloist(s))               'Charlo y su Orquesta'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:other'                                        'Charlo-Cadícamo'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.481516'

========================== row from database ==========================
                                              'id'  732303
                                            'path'  /data/Music/Bulk/00localcharacter/milongas/01 - No hay tierra como la mía (Charlo-Cadícamo) Charlo y su Orquesta.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  2650410
                                           'mtime'  1620528423
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter milongas 01 (Charlo Cadícamo) loc style tango or milonga
                                      'tag_artist'  Charlo y su Orquesta
                                     'tag_release'  Milongas
                                       'tag_title'  No hay tierra como la mía
                                             'bpm'  97.788
                                    'search_title'  'como':4 'hay':2 'la':5 'mia':6,7 'no':1 'tierra':3
                                   'search_artist'  'charlo':1 'orquesta':4 'su':3 'y':2
                                  'search_release'  'milongas':1
                                     'search_rest'  'cadicamo':4,5,6,7 'charlo':2,3 'loc':8 'milonga':12 'milongas':1 'or':11 'style':9 'tango':10
                                    'search_combo'  'cadicamo':16,17,18,19 'charlo':8B,14,15 'como':4A 'hay':2A 'la':5A 'loc':20 'mia':6A,7A 'milonga':24 'milongas':12C,13 'no':1A 'or':23 'orquesta':11B 'style':21 'su':10B 'tango':22 'tierra':3A 'y':9B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528423.0338762  (2021-05-09 04:47:03)
                             'size'  2650410