======================== unified (from filesystem) ========================
                                         'bitrate'  '90.921'
                                        'duration'  '152'
                                          'artist'  'Hank Williams, Sr'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "MY BUCKET'S GOT A HOLE IN IT 1960"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'classic country', 'folk', 'singer-songwriter', 'hank williams']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '145.580'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "MY BUCKET'S GOT A HOLE IN IT 1960"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Hank Williams, Sr'
'TPE2' (Band/orchestra/accompaniment)               'Hank Williams, Sr'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:WM/OriginalReleaseTime'                       '1960'
'TXXX:lastfmtags'                                   ['country', 'classic country', 'folk', 'singer-songwriter', 'hank williams']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.589516'

========================== row from database ==========================
                                              'id'  1509325
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Hank Williams Sr - MY BUCKET_S GOT A HOLE IN IT 1960.wma.mp3
                                         'working'  None
                                         'bitrate'  90
                                    'duration_sec'  152
                                           'genre'  loc-namerica-country
                                        'filesize'  1731916
                                           'mtime'  1621628163
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music BUCKET_S 1960.wma loc namerica country
                                      'tag_artist'  Hank Williams, Sr
                                     'tag_release'  None
                                       'tag_title'  MY BUCKET'S GOT A HOLE IN IT 1960
                                             'bpm'  145.58
                                    'search_title'  '1960':10 'a':6 'bucket':2 'buckets':4 'got':5 'hole':7 'in':8 'it':9 'my':1 's':3
                                   'search_artist'  'hank':1 'sr':4 'williams':2,3
                                  'search_release'  
                                     'search_rest'  '1960':9 '1960wma':11 'bucket':7 'country':4 'exotica':2 'jazz':1 'loc':12 'music':6 'namerica':13 'old':5 'oldies':3 's':8 'wma':10
                                    'search_combo'  '1960':10A,23 '1960wma':25 'a':6A 'bucket':2A,21 'buckets':4A 'country':18 'exotica':16 'got':5A 'hank':11B 'hole':7A 'in':8A 'it':9A 'jazz':15 'loc':26 'music':20 'my':1A 'namerica':27 'old':19 'oldies':17 's':3A,22 'sr':14B 'williams':12B,13B 'wma':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['country', 'classic country', 'folk', 'singer-songwriter', 'hank williams']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628163.2338388  (2021-05-21 22:16:03)
                             'size'  1731916