======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '150'
                                          'artist'  'Marais and Miranda'
                                     'text_people'  ''
                                         'release'  'Ballads of Many Lands'
                                           'title'  'How Lovely Cooks The Meat'
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                                      'lastfmtags'  "['nature', 'science', 'folk', 'eductional', 'educational']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  '8'
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '122.3'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Decca 10-inch LP DL 5268'
'TALB' (Album/Movie/Show title)                     'Ballads of Many Lands'
'TBPM' (BPM (beats per minute))                     '122.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1960'
'TENC' (Encoded by)                                 'SoundJam v2.5.3'
'TIT2' (Title/songname/content description)         'How Lovely Cooks The Meat'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Marais and Miranda'
'TRCK' (Track number/Position in set)               '1/8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['nature', 'science', 'folk', 'eductional', 'educational']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.665564'

========================== row from database ==========================
                                              'id'  1362979
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Marais and Miranda/ballads of many lands/01 how lovely cooks meat.mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  150
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  1504893
                                           'mtime'  1636400737
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                                        'rest_str'   00singer songwriter eos ballads many lands 01 how lovely cooks meat ifs songwriter folk
                                      'tag_artist'  Marais and Miranda
                                     'tag_release'  Ballads of Many Lands
                                       'tag_title'  How Lovely Cooks The Meat
                                             'bpm'  122.3
                                    'search_title'  'cooks':3 'how':1 'lovely':2 'meat':5 'the':4
                                   'search_artist'  'and':2 'marais':1 'miranda':3
                                  'search_release'  'ballads':1 'lands':4 'many':3 'of':2
                                     'search_rest'  '00singer':1 'ballads':4 'cooks':9 'eos':3 'folk':12 'how':7 'ifs':11 'lands':6 'lovely':8 'many':5 'meat':10 'songwriter':2
                                    'search_combo'  '00singer':13 'and':7B 'ballads':9C,16 'cooks':3A,21 'eos':15 'folk':24 'how':1A,19 'ifs':23 'lands':12C,18 'lovely':2A,20 'many':11C,17 'marais':6B 'meat':5A,22 'miranda':8B 'of':10C 'songwriter':14 'the':4A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['nature', 'science', 'folk', 'eductional', 'educational']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400737.4178455  (2021-11-08 20:45:37)
                             'size'  1504893