======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '400'
                                          'artist'  'Dune'
                                     'text_people'  ''
                                         'release'  'Expedicion'
                                           'title'  'So Beautiful'
                                           'quals'  ("['Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-HAP-4', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dance', 'rave', 'electronic', 'happy hardcore', 'trance']"
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-happy hardcore'
                                             'bpm'  '100.605'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Expedicion'
'TBPM' (BPM (beats per minute))                     '100.605'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-happy hardcore'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'So Beautiful'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dune'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'drum n bass']
'TXXX:lastfmtags'                                   ['dance', 'rave', 'electronic', 'happy hardcore', 'trance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.869873'

========================== row from database ==========================
                                              'id'  1456531
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/00mixable/Dune/Expedicion/MBZ;#Dune;#Expedicion;#05;#So Beautiful.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  400
                                           'genre'  electronic-th-ent-happy hardcore
                                        'filesize'  5607293
                                           'mtime'  1620558220
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 00mixable MBZ;#Dune;#Expedicion;#05;#So electronic th ent happy hardcore
                                      'tag_artist'  Dune
                                     'tag_release'  Expedicion
                                       'tag_title'  So Beautiful
                                             'bpm'  100.605
                                    'search_title'  'beautiful':2 'so':1
                                   'search_artist'  'dune':1
                                  'search_release'  'expedicion':1
                                     'search_rest'  '00mixable':5 '00poprockelectronic':1 '05':9,14 'dance':3 'dune':7,12 'electronic':16 'ent':18 'expedicion':8,13 'generic':2 'happy':19 'hardcore':20 'mbz':6,11 'so':10,15 'th':17 'trapbeat':4
                                    'search_combo'  '00mixable':9 '00poprockelectronic':5 '05':13,18 'beautiful':2A 'dance':7 'dune':3B,11,16 'electronic':20 'ent':22 'expedicion':4C,12,17 'generic':6 'happy':23 'hardcore':24 'mbz':10,15 'so':1A,14,19 'th':21 'trapbeat':8
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'rave', 'electronic', 'happy hardcore', 'trance']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1620558220.4858837  (2021-05-09 13:03:40)
                             'size'  5607293