======================== unified (from filesystem) ========================
                                         'bitrate'  '186.544'
                                        'duration'  '122'
                                          'artist'  'Frank Zappa & The Mothers of Invention'
                                     'text_people'  ''
                                         'release'  "We're only in it for the money"
                                           'title'  'Nasal Retentive Calliope Music'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['progressive rock', 'experimental', 'rock', 'jazz', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise'
                                             'bpm'  '138.229'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "We're only in it for the money"
'TBPM' (BPM (beats per minute))                     '138.229'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-experimental or noise'
'TDRC' (Recording time)                             '1968'
'TIT2' (Title/songname/content description)         'Nasal Retentive Calliope Music'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa & The Mothers of Invention'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['progressive rock', 'experimental', 'rock', 'jazz', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.84 dB'
'TXXX:replaygain_track_peak'                        '0.395763'

========================== row from database ==========================
                                              'id'  1527573
                                            'path'  /data/Music/Bulk/00poprockelectronic/Frank Zappa/Zappa, frank & the mothers - we_re only in it for the money/The Mothers -12- Nasal Retentive Calliope Music.mp3
                                         'working'  None
                                         'bitrate'  186
                                    'duration_sec'  122
                                           'genre'  rock-cppex-experimental or noise
                                        'filesize'  2868838
                                           'mtime'  1636918138
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Zappa, frank mothers we_re 12 rock cppex experimental noise
                                      'tag_artist'  Frank Zappa & The Mothers of Invention
                                     'tag_release'  We're only in it for the money
                                       'tag_title'  Nasal Retentive Calliope Music
                                             'bpm'  138.229
                                    'search_title'  'calliope':3 'music':4 'nasal':1 'retentive':2
                                   'search_artist'  'frank':1 'invention':6 'mothers':4 'of':5 'the':3 'zappa':2
                                  'search_release'  'for':7 'in':5 'it':6 'money':9 'only':4 're':2 'the':8 'we':1 'were':3
                                     'search_rest'  '00poprockelectronic':1 'cppex':9 'experimental':10 'frank':4 'mothers':5 'noise':11 're':7 'rock':8 'we':6 'zappa':2,3
                                    'search_combo'  '00poprockelectronic':20 'calliope':3A 'cppex':28 'experimental':29 'for':17C 'frank':5B,23 'in':15C 'invention':10B 'it':16C 'money':19C 'mothers':8B,24 'music':4A 'nasal':1A 'noise':30 'of':9B 'only':14C 're':12C,26 'retentive':2A 'rock':27 'the':7B,18C 'we':11C,25 'were':13C 'zappa':6B,21,22
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'experimental', 'rock', 'jazz', 'classic rock']
                                        'tag_date'  1968
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636918137.6908598  (2021-11-14 20:28:57)
                             'size'  2868838