======================== unified (from filesystem) ========================
                                         'bitrate'  '114.664'
                                        'duration'  '159'
                                          'artist'  'Bob Wills & His Texas Playboys'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ida Red Like To Boogie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic country', 'western swing', 'all', '40s', 'country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1945'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '145.163'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1945'
'TIT2' (Title/songname/content description)         'Ida Red Like To Boogie'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Wills & His Texas Playboys'
'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:lastfmtags'                                   ['classic country', 'western swing', 'all', '40s', 'country']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+2.57 dB'
'TXXX:replaygain_track_peak'                        '0.502782'

========================== row from database ==========================
                                              'id'  967046
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Old Country Music/Bob Wills & His Texas Playboys - Ida Red Like To Boogie (1949 - Tiny Moore vocal).wma.mp3
                                         'working'  None
                                         'bitrate'  114
                                    'duration_sec'  159
                                           'genre'  loc-namerica-country
                                        'filesize'  2290586
                                           'mtime'  1621628008
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Old Country Music (1949 Tiny Moore vocal).wma loc namerica country
                                      'tag_artist'  Bob Wills & His Texas Playboys
                                     'tag_release'  None
                                       'tag_title'  Ida Red Like To Boogie
                                             'bpm'  145.163
                                    'search_title'  'boogie':5 'ida':1 'like':3 'red':2 'to':4
                                   'search_artist'  'bob':1 'his':3 'playboys':5 'texas':4 'wills':2
                                  'search_release'  
                                     'search_rest'  '1949':7,8 'country':4 'exotica':2 'jazz':1 'loc':14 'moore':10 'music':6 'namerica':15 'old':5 'oldies':3 'tiny':9 'vocal':11 'vocalwma':13 'wma':12
                                    'search_combo'  '1949':17,18 'bob':6B 'boogie':5A 'country':14 'exotica':12 'his':8B 'ida':1A 'jazz':11 'like':3A 'loc':24 'moore':20 'music':16 'namerica':25 'old':15 'oldies':13 'playboys':10B 'red':2A 'texas':9B 'tiny':19 'to':4A 'vocal':21 'vocalwma':23 'wills':7B 'wma':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic country', 'western swing', 'all', '40s', 'country']
                                        'tag_date'  1945
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621628008.1122155  (2021-05-21 22:13:28)
                             'size'  2290586