======================== unified (from filesystem) ========================
                                         'bitrate'  '260.186'
                                        'duration'  '319'
                                          'artist'  'Ray Gun Hero'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Across the Grid'
                                           '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'retrowave', 'synthwave', 'american', 'darksynth']"
                                     'discogstags'  "['electronic', 'synthwave']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '135'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-we-synthwave or chillwave or retrowave'
                                             'bpm'  '109.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '109.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-synthwave or chillwave or retrowave'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Across the Grid'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ray Gun Hero'
'TRCK' (Track number/Position in set)               '135'
'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:discogstags'                                  ['electronic', 'synthwave']
'TXXX:lastfmtags'                                   ['electronic', 'retrowave', 'synthwave', 'american', 'darksynth']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '-1.83 dB'
'TXXX:replaygain_track_peak'                        '0.539365'

========================== row from database ==========================
                                              'id'  1350517
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00synthwave/Don Dellpiero - Synthwave/Ray_Gun_Hero_-_Across_the_Grid.mp3
                                         'working'  None
                                         'bitrate'  260
                                    'duration_sec'  319
                                           'genre'  electronic-we-synthwave or chillwave or retrowave
                                        'filesize'  10379502
                                           'mtime'  1620609070
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00synthwave Don Dellpiero Synthwave Ray_Gun_Hero_ _Across_the_Grid electronic we synthwave or chillwave or retrowave
                                      'tag_artist'  Ray Gun Hero
                                     'tag_release'  None
                                       'tag_title'  Across the Grid
                                             'bpm'  109.9
                                    'search_title'  'across':1 'grid':3 'the':2
                                   'search_artist'  'gun':2 'hero':3 'ray':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '00synthwave':4 'across':11 'chillwave':17 'dellpiero':6 'disco':3 'don':5 'electronic':14 'grid':13 'gun':9 'hero':10 'or':16 'ray':8 'retrowave':18 'synthwave':7 'the':12 'waves':2 'we':15
                                    'search_combo'  '00poprockelectronic':7 '00synthwave':10 'across':1A,17 'chillwave':23 'dellpiero':12 'disco':9 'don':11 'electronic':20 'grid':3A,19 'gun':5B,15 'hero':6B,16 'or':22 'ray':4B,14 'retrowave':24 'synthwave':13 'the':2A,18 'waves':8 'we':21
                                    'tag_tracknum'  135
                                      'num_images'  0
                                             'key'  6A
                                           '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-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'retrowave', 'synthwave', 'american', 'darksynth']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic', 'synthwave']

============================== file details ==============================
                                           'mtime'  1620609069.838938  (2021-05-10 03:11:09)
                             'size'  10379502