======================== unified (from filesystem) ========================
                                         'bitrate'  '137.932'
                                        'duration'  '183'
                                          'artist'  'Hector'
                                     'text_people'  ''
                                         'release'  'Dimitri - Suomi Masaa'
                                           'title'  'Tie Jatkuu Äärettömiin.'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['finnish', 'suomi', 'pop', 'rock', 'suomirock', 'singer songwriter']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-finland'
                                             'bpm'  '116.4'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Suomi Masaa'
'TBPM' (BPM (beats per minute))                     '116.4'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-finland'
'TIT2' (Title/songname/content description)         'Tie Jatkuu Äärettömiin.'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hector'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['finnish', 'suomi', 'pop', 'rock', 'suomirock', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.406359'
'TXXX:youtube'                                      'CYmj3uCAnGw'

========================== row from database ==========================
                                              'id'  1477138
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/SuomiMusaa/Hector - Tie Jatkuu Äärettömiin.-CYmj3uCAnGw.mp3
                                         'working'  None
                                         'bitrate'  137
                                    'duration_sec'  183
                                           'genre'  loc-eur-northern-finland
                                        'filesize'  3176187
                                           'mtime'  1621628563
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm SuomiMusaa CYmj3uCAnGw loc eur northern finland
                                      'tag_artist'  Hector
                                     'tag_release'  Dimitri - Suomi Masaa
                                       'tag_title'  Tie Jatkuu Äärettömiin.
                                             'bpm'  116.4
                                    'search_title'  'aarettomiin':3,4,5,6 'jatkuu':2 'tie':1
                                   'search_artist'  'hector':1
                                  'search_release'  'dimitri':1 'masaa':3 'suomi':2
                                     'search_rest'  'can':10 'cymj3u':9 'cymj3ucangw':2 'eur':4 'finland':6 'gw':11 'loc':3 'musaa':8 'northern':5 'suomi':7 'suomimusaa':1
                                    'search_combo'  'aarettomiin':3A,4A,5A,6A 'can':20 'cymj3u':19 'cymj3ucangw':12 'dimitri':8C 'eur':14 'finland':16 'gw':21 'hector':7B 'jatkuu':2A 'loc':13 'masaa':10C 'musaa':18 'northern':15 'suomi':9C,17 'suomimusaa':11 'tie':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['finnish', 'suomi', 'pop', 'rock', 'suomirock', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621628563.2430568  (2021-05-21 22:22:43)
                             'size'  3176187