======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '166'
                                          'artist'  'Lew Warburton'
                                     'text_people'  ''
                                         'release'  'The Happy Beat'
                                           'title'  'Chicken Scratch'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-1', 'q-drums-3', 'q-other-3', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['70s', 'pop', 'instrumental', 'new age', 'russ ballard']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '150.13'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Happy Beat'
'TBPM' (BPM (beats per minute))                     '150.13'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Chicken Scratch'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lew Warburton'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['70s', 'pop', 'instrumental', 'new age', 'russ ballard']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.717476'

========================== row from database ==========================
                                              'id'  1364913
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Syd Dale - [amphonic] - amps 0107 - the happy beat/07 Lew Warburton - Chicken Scratch.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  166
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3994577
                                           'mtime'  1620535976
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Syd Dale [amphonic] amps 0107 the happy beat 07 prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Lew Warburton
                                     'tag_release'  The Happy Beat
                                       'tag_title'  Chicken Scratch
                                             'bpm'  150.13
                                    'search_title'  'chicken':1 'scratch':2
                                   'search_artist'  'lew':1 'warburton':2
                                  'search_release'  'beat':3 'happy':2 'the':1
                                     'search_rest'  '0107':10 'amphonic':7,8 'amps':9 'beat':13 'bossa':18 'country':4 'dale':6 'exotica':2 'happy':12 'jazz':1 'jb':15 'lounge':16 'oldies':3 'or':17 'prerock':14 'syd':5 'the':11
                                    'search_combo'  '0107':17 'amphonic':14,15 'amps':16 'beat':7C,20 'bossa':25 'chicken':1A 'country':11 'dale':13 'exotica':9 'happy':6C,19 'jazz':8 'jb':22 'lew':3B 'lounge':23 'oldies':10 'or':24 'prerock':21 'scratch':2A 'syd':12 'the':5C,18 'warburton':4B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['70s', 'pop', 'instrumental', 'new age', 'russ ballard']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535976.329683  (2021-05-09 06:52:56)
                             'size'  3994577