======================== unified (from filesystem) ========================
                                         'bitrate'  '209.145'
                                        'duration'  '179'
                                          'artist'  'Rex Allen jr'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ' LYING IN MY ARMS'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'honkitonk', 'cowboy', 'easy listening', 'schlager']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '131.669'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '131.669'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         ' LYING IN MY ARMS'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rex Allen jr'
'TPOS' (Part of a set)                              '1/1'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'honkitonk', 'cowboy', 'easy listening', 'schlager']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.719838'

========================== row from database ==========================
                                              'id'  967379
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Rex Allen jr - LYING IN MY ARMS.wma.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  179
                                           'genre'  loc-namerica-country
                                        'filesize'  4685282
                                           'mtime'  1621628277
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music ARMS.wma loc namerica country
                                      'tag_artist'  Rex Allen jr
                                     'tag_release'  None
                                       'tag_title'   LYING IN MY ARMS
                                             'bpm'  131.669
                                    'search_title'  'arms':4 'in':2 'lying':1 'my':3
                                   'search_artist'  'allen':2 'jr':3 'rex':1
                                  'search_release'  
                                     'search_rest'  'arms':7 'armswma':9 'country':4 'exotica':2 'jazz':1 'loc':10 'music':6 'namerica':11 'old':5 'oldies':3 'wma':8
                                    'search_combo'  'allen':6B 'arms':4A,14 'armswma':16 'country':11 'exotica':9 'in':2A 'jazz':8 'jr':7B 'loc':17 'lying':1A 'music':13 'my':3A 'namerica':18 'old':12 'oldies':10 'rex':5B 'wma':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'honkitonk', 'cowboy', 'easy listening', 'schlager']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628276.9458601  (2021-05-21 22:17:56)
                             'size'  4685282