======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '161'
                                          'artist'  'Pat Boone'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Just As Long As I'm With You"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'country', 'pop', 'swing', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '410'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '121.701'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.701'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         "Just As Long As I'm With You"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pat Boone'
'TRCK' (Track number/Position in set)               '410'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', '60s', 'country', 'pop', 'swing', '50s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+2.12 dB'
'TXXX:replaygain_track_peak'                        '0.495361'

========================== row from database ==========================
                                              'id'  1505551
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-410 - Pat Boone - Just As Long As I_m With You.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  161
                                           'genre'  prerock-swing
                                        'filesize'  6469684
                                           'mtime'  1620562591
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 410 I_m prerock swing
                                      'tag_artist'  Pat Boone
                                     'tag_release'  None
                                       'tag_title'  Just As Long As I'm With You
                                             'bpm'  121.701
                                    'search_title'  'as':2 'i':4 'im':6 'just':1 'long':3 'm':5 'with':7 'you':8
                                   'search_artist'  'boone':2 'pat':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1956':6 '410':7 'country':4 'exotica':2 'i':8 'jazz':1 'm':9 'oldies':3 'prerock':10 'swing':11
                                    'search_combo'  '00oldiepop':15 '1956':16 '410':17 'as':2A 'boone':10B 'country':14 'exotica':12 'i':4A,18 'im':6A 'jazz':11 'just':1A 'long':3A 'm':5A,19 'oldies':13 'pat':9B 'prerock':20 'swing':21 'with':7A 'you':8A
                                    'tag_tracknum'  410
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '60s', 'country', 'pop', 'swing', '50s']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562590.5309088  (2021-05-09 14:16:30)
                             'size'  6469684