======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '203'
                                          'artist'  'Jurriaan Andriessen [1925-1996]'
                                     'text_people'  ''
                                         'release'  'software hardware - park 18 pal 25090'
                                           'title'  'handshaking'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '120.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'software hardware - park 18 pal 25090'
'TBPM' (BPM (beats per minute))                     '120.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TCOP' (Copyright message)                          'Jurriaan Andriessen [1925-1996]'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'handshaking'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '000000203646'
'TPE1' (Lead performer(s)/Soloist(s))               'Jurriaan Andriessen'
'TPE2' (Band/orchestra/accompaniment)               'Jurriaan Andriessen [1925-1996]'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.10 dB'
'TXXX:replaygain_track_peak'                        '0.803830'
'TXXX:tracknum'                                     '07'

========================== row from database ==========================
                                              'id'  1379606
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Jurriaan Andriessen [1925-1996] - jurriaan andriessen - hardware software (park, 1978)/07 handshaking.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  203
                                           'genre'  electronic-experimental-early
                                        'filesize'  8149620
                                           'mtime'  1636403705
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm jurriaan andriessen (park, 1978) 07 electronic experimental early
                                      'tag_artist'  Jurriaan Andriessen [1925-1996]
                                     'tag_release'  software hardware - park 18 pal 25090
                                       'tag_title'  handshaking
                                             'bpm'  120.3
                                    'search_title'  'handshaking':1
                                   'search_artist'  '1925':3 '19251996':5 '1996':4 'andriessen':2 'jurriaan':1
                                  'search_release'  '18':4 '25090':6 'hardware':2 'pal':5 'park':3 'software':1
                                     'search_rest'  '1978':5,6 'andriessen':2 'early':9 'electronic':7 'experimental':8 'jurriaan':1 'park':3,4
                                    'search_combo'  '18':10C '1925':4B '19251996':6B '1978':17,18 '1996':5B '25090':12C 'andriessen':3B,14 'early':21 'electronic':19 'experimental':20 'handshaking':1A 'hardware':8C 'jurriaan':2B,13 'pal':11C 'park':9C,15,16 'software':7C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1978
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636403704.6004336  (2021-11-08 21:35:04)
                             'size'  8149620