======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '165'
                                          'artist'  '101 Strings Orchestra'
                                     'text_people'  ''
                                         'release'  'The Heart Of Ireland'
                                           'title'  'A Little Bit O Heaven'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '144.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Heart Of Ireland'
'TBPM' (BPM (beats per minute))                     '144.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'A Little Bit O Heaven'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings Orchestra'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings Orchestra'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.495995'

========================== row from database ==========================
                                              'id'  1478936
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/1998 - The Heart of Ireland/04 - A Little Bit O Heaven.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  165
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  7580934
                                           'mtime'  1621705576
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1998 of 04 electronic generic or radio easy listening
                                      'tag_artist'  101 Strings Orchestra
                                     'tag_release'  The Heart Of Ireland
                                       'tag_title'  A Little Bit O Heaven
                                             'bpm'  144.4
                                    'search_title'  'a':1 'bit':3 'heaven':5 'little':2 'o':4
                                   'search_artist'  '101':1 'orchestra':3 'strings':2
                                  'search_release'  'heart':2 'ireland':4 'of':3 'the':1
                                     'search_rest'  '1998':5 'country':4 'easy':11 'electronic':7 'exotica':2 'generic':8 'jazz':1 'listening':12 'of':6 'oldies':3 'or':9 'radio':10
                                    'search_combo'  '101':6B '1998':17 'a':1A 'bit':3A 'country':16 'easy':23 'electronic':19 'exotica':14 'generic':20 'heart':10C 'heaven':5A 'ireland':12C 'jazz':13 'listening':24 'little':2A 'o':4A 'of':11C,18 'oldies':15 'or':21 'orchestra':8B 'radio':22 'strings':7B 'the':9C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705575.5992806  (2021-05-22 19:46:15)
                             'size'  7580934