======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'Syd Dale'
                                     'text_people'  ''
                                         'release'  'The Happy Beat'
                                           'title'  'All Things Nice'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'space age pop', 'jazz', 'illstreet', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '131.67'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Happy Beat'
'TBPM' (BPM (beats per minute))                     '131.67'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'All Things Nice'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Syd Dale'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'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'                                   ['lounge', 'space age pop', 'jazz', 'illstreet', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.55 dB'
'TXXX:replaygain_track_peak'                        '0.712516'

========================== row from database ==========================
                                              'id'  1371612
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Syd Dale - [amphonic] - amps 0107 - the happy beat/02 Syd Dale - All Things Nice.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3259796
                                           'mtime'  1620535971
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country [amphonic] amps 0107 the happy beat 02 prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Syd Dale
                                     'tag_release'  The Happy Beat
                                       'tag_title'  All Things Nice
                                             'bpm'  131.67
                                    'search_title'  'all':1 'nice':3 'things':2
                                   'search_artist'  'dale':2 'syd':1
                                  'search_release'  'beat':3 'happy':2 'the':1
                                     'search_rest'  '0107':8 'amphonic':5,6 'amps':7 'beat':11 'bossa':16 'country':4 'exotica':2 'happy':10 'jazz':1 'jb':13 'lounge':14 'oldies':3 'or':15 'prerock':12 'the':9
                                    'search_combo'  '0107':16 'all':1A 'amphonic':13,14 'amps':15 'beat':8C,19 'bossa':24 'country':12 'dale':5B 'exotica':10 'happy':7C,18 'jazz':9 'jb':21 'lounge':22 'nice':3A 'oldies':11 'or':23 'prerock':20 'syd':4B 'the':6C,17 'things':2A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'space age pop', 'jazz', 'illstreet', 'easy listening']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535971.3464093  (2021-05-09 06:52:51)
                             'size'  3259796