======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '182'
                                          'artist'  'Pedro Morquecho'
                                     'text_people'  'Rafael Hernández'
                                         'release'  'Su Novachord Y Su Orquesta'
                                           'title'  'el cumbanchero'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B3'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '145.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Su Novachord Y Su Orquesta'
'TBPM' (BPM (beats per minute))                     '145.7'
'TCOM' (Composer)                                   'Rafael Hernández'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         'el cumbanchero'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pedro Morquecho'
'TRCK' (Track number/Position in set)               'B3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.48 dB'
'TXXX:replaygain_track_peak'                        '0.413597'

========================== row from database ==========================
                                              'id'  1379933
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/pedro morquecho - su_novachord_y_su_orquesta--mp3s/su_novachord_y_su_orquesta--B3--el_cumbanchero.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  182
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  7305216
                                           'mtime'  1620537941
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country pedro morquecho su_novachord_y_su_orquesta mp3s su_novachord_y_su_orquesta B3 el_cumbanchero prerock jb jazz lounge exotica bossa
                                      'tag_artist'  Pedro Morquecho
                                     'tag_release'  Su Novachord Y Su Orquesta
                                       'tag_title'  el cumbanchero
                                             'bpm'  145.7
                                    'search_title'  'cumbanchero':2 'el':1
                                   'search_artist'  'morquecho':2 'pedro':1
                                  'search_release'  'novachord':2 'orquesta':4 'su':1 'y':3
                                     'search_rest'  'b3':13 'bossa':19 'country':4 'cumbanchero':15 'el':14 'exotica':2 'jazz':1 'jb':17 'lounge':18 'morquecho':6 'mp3s':12 'novachord':8 'oldies':3 'orquesta':11 'pedro':5 'prerock':16 'su':7,10 'y':9
                                    'search_combo'  'b3':21 'bossa':27 'country':12 'cumbanchero':2A,23 'el':1A,22 'exotica':10 'jazz':9 'jb':25 'lounge':26 'morquecho':4B,14 'mp3s':20 'novachord':6C,16 'oldies':11 'orquesta':8C,19 'pedro':3B,13 'prerock':24 'su':5C,15,18 'y':7C,17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620537941.128425  (2021-05-09 07:25:41)
                             'size'  7305216