======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '32'
                                          'artist'  'Laszlo Bencker'
                                     'text_people'  ''
                                         'release'  'Robot Couture Underscores 1'
                                           'title'  'Robot Romance (a)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['sonne immage', 'fusion', 'electronic', 'smooth jazz', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B12'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '134.21'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Robot Couture Underscores 1'
'TBPM' (BPM (beats per minute))                     '134.21'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Robot Romance (a)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Epping'
'TPE2' (Band/orchestra/accompaniment)               'Laszlo Bencker'
'TRCK' (Track number/Position in set)               'B12'
'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:lastfmtags'                                   ['sonne immage', 'fusion', 'electronic', 'smooth jazz', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.55 dB'
'TXXX:replaygain_track_peak'                        '0.631684'

========================== row from database ==========================
                                              'id'  983398
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0electronic/[sonoton] - son 296 - laszlo bencker - robot couture underscores 1/B12 John Epping - Robot Romance (a).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  32
                                           'genre'  electronic-unsorted
                                        'filesize'  1286432
                                           'mtime'  1641489689
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0electronic [sonoton] son 296 laszlo bencker robot couture underscores B12 John Epping electronic unsorted
                                      'tag_artist'  Laszlo Bencker
                                     'tag_release'  Robot Couture Underscores 1
                                       'tag_title'  Robot Romance (a)
                                             'bpm'  134.21
                                    'search_title'  'a':3,4 'robot':1 'romance':2
                                   'search_artist'  'bencker':2 'laszlo':1
                                  'search_release'  '1':4 'couture':2 'robot':1 'underscores':3
                                     'search_rest'  '0electronic':1 '296':5 'b12':11 'bencker':7 'couture':9 'electronic':14 'epping':13 'john':12 'laszlo':6 'robot':8 'son':4 'sonoton':2,3 'underscores':10 'unsorted':15
                                    'search_combo'  '0electronic':11 '1':10C '296':15 'a':3A,4A 'b12':21 'bencker':6B,17 'couture':8C,19 'electronic':24 'epping':23 'john':22 'laszlo':5B,16 'robot':1A,7C,18 'romance':2A 'son':14 'sonoton':12,13 'underscores':9C,20 'unsorted':25
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']
                                      'lastfmtags'  ['sonne immage', 'fusion', 'electronic', 'smooth jazz', 'easy listening']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1641489688.6137116  (2022-01-06 18:21:28)
                             'size'  1286432