======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '169'
                                          'artist'  'Klaas van Beeck KRO Fitspuitorkest'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'South (KRO Fitspuitorkest )'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;loc-eur-netherlands'
                                             'bpm'  '145.371'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.371'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'loc-eur-netherlands']
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'South (KRO Fitspuitorkest )'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaas van Beeck KRO Fitspuitorkest'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.94 dB'
'TXXX:replaygain_track_peak'                        '0.553068'

========================== row from database ==========================
                                              'id'  1446376
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/Klaas van Beeck KRO Fitspuitorkest - South 5-12-1954.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  169
                                           'genre'  prerock-vocal;loc-eur-netherlands
                                        'filesize'  3395250
                                           'mtime'  1621627850
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 5 12 1954 prerock vocal;loc eur netherlands
                                      'tag_artist'  Klaas van Beeck KRO Fitspuitorkest
                                     'tag_release'  None
                                       'tag_title'  South (KRO Fitspuitorkest )
                                             'bpm'  145.371
                                    'search_title'  'fitspuitorkest':4 'kro':2,3 'south':1
                                   'search_artist'  'beeck':3 'fitspuitorkest':5 'klaas':1 'kro':4 'van':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1954':6 '5':7 'country':4 'eur':13 'exotica':2 'jazz':1 'loc':10,12 'netherlands':14 'oldies':3 'prerock':8 'vocal':9,11
                                    'search_combo'  '00oldiepop':14 '1954':15 '5':16 'beeck':7B 'country':13 'eur':22 'exotica':11 'fitspuitorkest':4A,9B 'jazz':10 'klaas':5B 'kro':2A,3A,8B 'loc':19,21 'netherlands':23 'oldies':12 'prerock':17 'south':1A 'van':6B 'vocal':18,20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627849.6706102  (2021-05-21 22:10:49)
                             'size'  3395250