======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '131'
                                          'artist'  'The Stanley Brothers'
                                     'text_people'  ''
                                         'release'  'Pure Truck & Country'
                                           'title'  "Clyde's Getaway (Inst.)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'all', 'bluegrass', 'americana', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '128.170'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Pure Truck & Country'
'TBPM' (BPM (beats per minute))                     '128.170'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         "Clyde's Getaway (Inst.)"
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stanley Brothers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '05'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.2 (http://www.mp3dev.org/)'
'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'                                   ['country', 'all', 'bluegrass', 'americana', 'folk']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.547554'

========================== row from database ==========================
                                              'id'  1515734
                                            'path'  /data/Music/Bulk/00localcharacter/Ray King - Various Artists - Pure Truck & Country (Nashville NLPS 2066) [@320]/05-The Stanley Brothers-Clyde_s Getaway (Inst.).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  131
                                           'genre'  loc-namerica-country
                                        'filesize'  5634001
                                           'mtime'  1621629759
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Ray King Various Artists (Nashville NLPS 2066) [@320] 05 Clyde_s loc namerica country
                                      'tag_artist'  The Stanley Brothers
                                     'tag_release'  Pure Truck & Country
                                       'tag_title'  Clyde's Getaway (Inst.)
                                             'bpm'  128.17
                                    'search_title'  'clyde':1 'clydes':3 'getaway':4 'inst':5,6 's':2
                                   'search_artist'  'brothers':3 'stanley':2 'the':1
                                  'search_release'  'country':3 'pure':1 'truck':2
                                     'search_rest'  '2066':8,9 '320':10,11 'artists':4 'clyde':12 'country':16 'king':2 'loc':14 'namerica':15 'nashville':5,6 'nlps':7 'ray':1 's':13 'various':3
                                    'search_combo'  '2066':20,21 '320':22,23 'artists':16 'brothers':9B 'clyde':1A,24 'clydes':3A 'country':12C,28 'getaway':4A 'inst':5A,6A 'king':14 'loc':26 'namerica':27 'nashville':17,18 'nlps':19 'pure':10C 'ray':13 's':2A,25 'stanley':8B 'the':7B 'truck':11C 'various':15
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'bluegrass', 'americana', 'folk']
                                        'tag_date'  1969
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629758.7209277  (2021-05-21 22:42:38)
                             'size'  5634001