======================== unified (from filesystem) ========================
                                         'bitrate'  '233.875'
                                        'duration'  '115'
                                          'artist'  'Brandon Liew'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'walking at night Lofi Vaporwave'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['indie', 'pop', 'alternative', 'indie pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '27'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '94.4'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '94.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'walking at night Lofi Vaporwave'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Brandon Liew'
'TRCK' (Track number/Position in set)               '27'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Software'                                     'Lavf58.2.100'
'TXXX:lastfmtags'                                   ['indie', 'pop', 'alternative', 'indie pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.544831'

========================== row from database ==========================
                                              'id'  1302679
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/Don Dellpiero - Synthwave/Brandon_Liew_-_walking_at_night_Lofi_Vaporwave.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  115
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  3381173
                                           'mtime'  1620608777
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave Don Dellpiero Synthwave Brandon_Liew_ _walking_at_night_Lofi_Vaporwave electronic we synthwave chillwave retrowave
                                      'tag_artist'  Brandon Liew
                                     'tag_release'  None
                                       'tag_title'  walking at night Lofi Vaporwave
                                             'bpm'  94.4
                                    'search_title'  'at':2 'lofi':4 'night':3 'vaporwave':5 'walking':1
                                   'search_artist'  'brandon':1 'liew':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'at':11 'brandon':8 'chillwave':17 'dellpiero':6 'disco':3 'don':5 'electronic':15 'liew':9 'lofi':13 'night':12 'retrowave':18 'synthwave':7 'vaporwave':14 'walking':10 'waves':2 'we':16
                                    'search_combo'  '00poprockelectronic':8 '00synthwave':11 'at':2A,18 'brandon':6B,15 'chillwave':24 'dellpiero':13 'disco':10 'don':12 'electronic':22 'liew':7B,16 'lofi':4A,20 'night':3A,19 'retrowave':25 'synthwave':14 'vaporwave':5A,21 'walking':1A,17 'waves':9 'we':23
                                    'tag_tracknum'  27
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'pop', 'alternative', 'indie pop']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620608776.6398575  (2021-05-10 03:06:16)
                             'size'  3381173