======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '435'
                                          'artist'  'Christonia5'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "martin nonstatic 'Fading Trees And Clouds' (( free downl.))"
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', "
 "'q-vocals-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '130.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         "martin nonstatic 'Fading Trees And Clouds' (( free downl.))"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Christonia5'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.54.0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:other'                                        '110641157'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.842715'

========================== row from database ==========================
                                              'id'  1505400
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/Christonia5/martin nonstatic _Fading Trees And Clouds_ (( free downl.))-110641157.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  435
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  17441451
                                           'mtime'  1621084961
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud _Fading Clouds_ 110641157 electronic th techno minimal or deephouse
                                      'tag_artist'  Christonia5
                                     'tag_release'  None
                                       'tag_title'  martin nonstatic 'Fading Trees And Clouds' (( free downl.))
                                             'bpm'  130.3
                                    'search_title'  'and':6 'clouds':7,8 'downl':10,11 'fading':3,4 'free':9 'martin':1 'nonstatic':2 'trees':5
                                   'search_artist'  'christonia5':1
                                  'search_release'  
                                     'search_rest'  '110641157':4 'clouds':3 'deephouse':10 'electronic':5 'fading':2 'minimal':8 'or':9 'soundcloud':1 'techno':7 'th':6
                                    'search_combo'  '110641157':16 'and':6A 'christonia5':12B 'clouds':7A,8A,15 'deephouse':22 'downl':10A,11A 'electronic':17 'fading':3A,4A,14 'free':9A 'martin':1A 'minimal':20 'nonstatic':2A 'or':21 'soundcloud':13 'techno':19 'th':18 'trees':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-4', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621084961.3130221  (2021-05-15 15:22:41)
                             'size'  17441451