======================== unified (from filesystem) ========================
                                         'bitrate'  '209.754'
                                        'duration'  '147'
                                          'artist'  'Eddie Arnold'
                                     'text_people'  ''
                                         'release'  'INTERNET'
                                           'title'  "'TILL 1 WALTZ AGAIN WITH U."
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'classic country', 'male vocalists', 'oldies', 'eddy arnold']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '100.906'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'INTERNET'
'TBPM' (BPM (beats per minute))                     '100.906'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         "'TILL 1 WALTZ AGAIN WITH U."
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eddie Arnold'
'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-UNU'                                        '2'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['country', 'classic country', 'male vocalists', 'oldies', 'eddy arnold']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+0.26 dB'
'TXXX:replaygain_track_peak'                        '0.508545'

========================== row from database ==========================
                                              'id'  968191
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Eddie Arnold - Till I Waltz Again With You.wma.mp3
                                         'working'  None
                                         'bitrate'  209
                                    'duration_sec'  147
                                           'genre'  loc-namerica-country
                                        'filesize'  3874816
                                           'mtime'  1621628064
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music Till Waltz Again With You.wma loc namerica country
                                      'tag_artist'  Eddie Arnold
                                     'tag_release'  INTERNET
                                       'tag_title'  'TILL 1 WALTZ AGAIN WITH U.
                                             'bpm'  100.906
                                    'search_title'  '1':3 'again':5 'till':1,2 'u':7,8 'waltz':4 'with':6
                                   'search_artist'  'arnold':2 'eddie':1
                                  'search_release'  'internet':1
                                     'search_rest'  'again':9 'country':4 'exotica':2 'jazz':1 'loc':14 'music':6 'namerica':15 'old':5 'oldies':3 'till':7 'waltz':8 'with':10 'wma':12 'you':11 'youwma':13
                                    'search_combo'  '1':3A 'again':5A,20 'arnold':10B 'country':15 'eddie':9B 'exotica':13 'internet':11C 'jazz':12 'loc':25 'music':17 'namerica':26 'old':16 'oldies':14 'till':1A,2A,18 'u':7A,8A 'waltz':4A,19 'with':6A,21 'wma':23 'you':22 'youwma':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'classic country', 'male vocalists', 'oldies', 'eddy arnold']
                                        'tag_date'  1945
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1621628064.238851  (2021-05-21 22:14:24)
                             'size'  3874816